210978560

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:474

約数の個数: 144

約数和(自身を含む): 563162880

約数和(自身を除く): 352184320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 409, 416, 496, 520, 620, 640, 806, 818, 832, 992, 1040, 1240, 1280, 1612, 1636, 1664, 1984, 2015, 2045, 2080, 2480, 3224, 3272, 3328, 3968, 4030, 4090, 4160, 4960, 5317, 6448, 6544, 7936, 8060, 8180, 8320, 9920, 10634, 12679, 12896, 13088, 16120, 16360, 16640, 19840, 21268, 25358, 25792, 26176, 26585, 32240, 32720, 39680, 42536, 50716, 51584, 52352, 53170, 63395, 64480, 65440, 85072, 101432, 103168, 104704, 106340, 126790, 128960, 130880, 164827, 170144, 202864, 212680, 253580, 257920, 261760, 329654, 340288, 405728, 425360, 507160, 515840, 523520, 659308, 680576, 811456, 824135, 850720, 1014320, 1318616, 1361152, 1622912, 1648270, 1701440, 2028640, 2637232, 3245824, 3296540, 3402880, 4057280, 5274464, 6593080, 6805760, 8114560, 10548928, 13186160, 16229120, 21097856, 26372320, 42195712, 52744640, 105489280, 210978560]

約数ペア:

[(1, 210978560), (2, 105489280), (4, 52744640), (5, 42195712), (8, 26372320), (10, 21097856), (13, 16229120), (16, 13186160), (20, 10548928), (26, 8114560), (31, 6805760), (32, 6593080), (40, 5274464), (52, 4057280), (62, 3402880), (64, 3296540), (65, 3245824), (80, 2637232), (104, 2028640), (124, 1701440), (128, 1648270), (130, 1622912), (155, 1361152), (160, 1318616), (208, 1014320), (248, 850720), (256, 824135), (260, 811456), (310, 680576), (320, 659308), (403, 523520), (409, 515840), (416, 507160), (496, 425360), (520, 405728), (620, 340288), (640, 329654), (806, 261760), (818, 257920), (832, 253580), (992, 212680), (1040, 202864), (1240, 170144), (1280, 164827), (1612, 130880), (1636, 128960), (1664, 126790), (1984, 106340), (2015, 104704), (2045, 103168), (2080, 101432), (2480, 85072), (3224, 65440), (3272, 64480), (3328, 63395), (3968, 53170), (4030, 52352), (4090, 51584), (4160, 50716), (4960, 42536), (5317, 39680), (6448, 32720), (6544, 32240), (7936, 26585), (8060, 26176), (8180, 25792), (8320, 25358), (9920, 21268), (10634, 19840), (12679, 16640), (12896, 16360), (13088, 16120)]