20020748800

素因数分解:

$2^9\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1523}}^1$

素因数の和:1643

約数の個数: 240

約数和(自身を含む): 54130285440

約数和(自身を除く): 34109536640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 79, 80, 100, 104, 128, 130, 158, 160, 200, 208, 256, 260, 316, 320, 325, 395, 400, 416, 512, 520, 632, 640, 650, 790, 800, 832, 1027, 1040, 1264, 1280, 1300, 1523, 1580, 1600, 1664, 1975, 2054, 2080, 2528, 2560, 2600, 3046, 3160, 3200, 3328, 3950, 4108, 4160, 5056, 5135, 5200, 6092, 6320, 6400, 6656, 7615, 7900, 8216, 8320, 10112, 10270, 10400, 12184, 12640, 12800, 15230, 15800, 16432, 16640, 19799, 20224, 20540, 20800, 24368, 25280, 25675, 30460, 31600, 32864, 33280, 38075, 39598, 40448, 41080, 41600, 48736, 50560, 51350, 60920, 63200, 65728, 76150, 79196, 82160, 83200, 97472, 98995, 101120, 102700, 120317, 121840, 126400, 131456, 152300, 158392, 164320, 166400, 194944, 197990, 202240, 205400, 240634, 243680, 252800, 262912, 304600, 316784, 328640, 389888, 395980, 410800, 481268, 487360, 494975, 505600, 525824, 601585, 609200, 633568, 657280, 779776, 791960, 821600, 962536, 974720, 989950, 1011200, 1203170, 1218400, 1267136, 1314560, 1564121, 1583920, 1643200, 1925072, 1949440, 1979900, 2406340, 2436800, 2534272, 2629120, 3007925, 3128242, 3167840, 3286400, 3850144, 3898880, 3959800, 4812680, 4873600, 5068544, 6015850, 6256484, 6335680, 6572800, 7700288, 7820605, 7919600, 9625360, 9747200, 10137088, 12031700, 12512968, 12671360, 13145600, 15400576, 15641210, 15839200, 19250720, 19494400, 24063400, 25025936, 25342720, 30801152, 31282420, 31678400, 38501440, 39103025, 48126800, 50051872, 50685440, 61602304, 62564840, 63356800, 77002880, 78206050, 96253600, 100103744, 125129680, 126713600, 154005760, 156412100, 192507200, 200207488, 250259360, 253427200, 308011520, 312824200, 385014400, 400414976, 500518720, 625648400, 770028800, 800829952, 1001037440, 1251296800, 1540057600, 2002074880, 2502593600, 4004149760, 5005187200, 10010374400, 20020748800]

約数ペア:

[(1, 20020748800), (2, 10010374400), (4, 5005187200), (5, 4004149760), (8, 2502593600), (10, 2002074880), (13, 1540057600), (16, 1251296800), (20, 1001037440), (25, 800829952), (26, 770028800), (32, 625648400), (40, 500518720), (50, 400414976), (52, 385014400), (64, 312824200), (65, 308011520), (79, 253427200), (80, 250259360), (100, 200207488), (104, 192507200), (128, 156412100), (130, 154005760), (158, 126713600), (160, 125129680), (200, 100103744), (208, 96253600), (256, 78206050), (260, 77002880), (316, 63356800), (320, 62564840), (325, 61602304), (395, 50685440), (400, 50051872), (416, 48126800), (512, 39103025), (520, 38501440), (632, 31678400), (640, 31282420), (650, 30801152), (790, 25342720), (800, 25025936), (832, 24063400), (1027, 19494400), (1040, 19250720), (1264, 15839200), (1280, 15641210), (1300, 15400576), (1523, 13145600), (1580, 12671360), (1600, 12512968), (1664, 12031700), (1975, 10137088), (2054, 9747200), (2080, 9625360), (2528, 7919600), (2560, 7820605), (2600, 7700288), (3046, 6572800), (3160, 6335680), (3200, 6256484), (3328, 6015850), (3950, 5068544), (4108, 4873600), (4160, 4812680), (5056, 3959800), (5135, 3898880), (5200, 3850144), (6092, 3286400), (6320, 3167840), (6400, 3128242), (6656, 3007925), (7615, 2629120), (7900, 2534272), (8216, 2436800), (8320, 2406340), (10112, 1979900), (10270, 1949440), (10400, 1925072), (12184, 1643200), (12640, 1583920), (12800, 1564121), (15230, 1314560), (15800, 1267136), (16432, 1218400), (16640, 1203170), (19799, 1011200), (20224, 989950), (20540, 974720), (20800, 962536), (24368, 821600), (25280, 791960), (25675, 779776), (30460, 657280), (31600, 633568), (32864, 609200), (33280, 601585), (38075, 525824), (39598, 505600), (40448, 494975), (41080, 487360), (41600, 481268), (48736, 410800), (50560, 395980), (51350, 389888), (60920, 328640), (63200, 316784), (65728, 304600), (76150, 262912), (79196, 252800), (82160, 243680), (83200, 240634), (97472, 205400), (98995, 202240), (101120, 197990), (102700, 194944), (120317, 166400), (121840, 164320), (126400, 158392), (131456, 152300)]