1391438720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:333

約数の個数: 256

約数和(自身を含む): 4032737280

約数和(自身を除く): 2641298560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 43, 56, 62, 64, 70, 80, 86, 112, 124, 128, 140, 155, 160, 172, 215, 217, 224, 233, 248, 280, 301, 310, 320, 344, 430, 434, 448, 466, 496, 560, 602, 620, 640, 688, 860, 868, 896, 932, 992, 1085, 1120, 1165, 1204, 1240, 1333, 1376, 1505, 1631, 1720, 1736, 1864, 1984, 2170, 2240, 2330, 2408, 2480, 2666, 2752, 3010, 3262, 3440, 3472, 3728, 3968, 4340, 4480, 4660, 4816, 4960, 5332, 5504, 6020, 6524, 6665, 6880, 6944, 7223, 7456, 8155, 8680, 9320, 9331, 9632, 9920, 10019, 10664, 12040, 13048, 13330, 13760, 13888, 14446, 14912, 16310, 17360, 18640, 18662, 19264, 19840, 20038, 21328, 24080, 26096, 26660, 27520, 27776, 28892, 29824, 32620, 34720, 36115, 37280, 37324, 38528, 40076, 42656, 46655, 48160, 50095, 50561, 52192, 53320, 57784, 65240, 69440, 70133, 72230, 74560, 74648, 80152, 85312, 93310, 96320, 100190, 101122, 104384, 106640, 115568, 130480, 138880, 140266, 144460, 149120, 149296, 160304, 170624, 186620, 192640, 200380, 202244, 208768, 213280, 231136, 252805, 260960, 280532, 288920, 298592, 310589, 320608, 350665, 373240, 400760, 404488, 426560, 462272, 505610, 521920, 561064, 577840, 597184, 621178, 641216, 701330, 746480, 801520, 808976, 853120, 924544, 1011220, 1043840, 1122128, 1155680, 1194368, 1242356, 1282432, 1402660, 1492960, 1552945, 1603040, 1617952, 2022440, 2174123, 2244256, 2311360, 2484712, 2805320, 2985920, 3105890, 3206080, 3235904, 4044880, 4348246, 4488512, 4622720, 4969424, 5610640, 5971840, 6211780, 6412160, 6471808, 8089760, 8696492, 8977024, 9938848, 10870615, 11221280, 12423560, 16179520, 17392984, 19877696, 21741230, 22442560, 24847120, 32359040, 34785968, 39755392, 43482460, 44885120, 49694240, 69571936, 86964920, 99388480, 139143872, 173929840, 198776960, 278287744, 347859680, 695719360, 1391438720]

約数ペア:

[(1, 1391438720), (2, 695719360), (4, 347859680), (5, 278287744), (7, 198776960), (8, 173929840), (10, 139143872), (14, 99388480), (16, 86964920), (20, 69571936), (28, 49694240), (31, 44885120), (32, 43482460), (35, 39755392), (40, 34785968), (43, 32359040), (56, 24847120), (62, 22442560), (64, 21741230), (70, 19877696), (80, 17392984), (86, 16179520), (112, 12423560), (124, 11221280), (128, 10870615), (140, 9938848), (155, 8977024), (160, 8696492), (172, 8089760), (215, 6471808), (217, 6412160), (224, 6211780), (233, 5971840), (248, 5610640), (280, 4969424), (301, 4622720), (310, 4488512), (320, 4348246), (344, 4044880), (430, 3235904), (434, 3206080), (448, 3105890), (466, 2985920), (496, 2805320), (560, 2484712), (602, 2311360), (620, 2244256), (640, 2174123), (688, 2022440), (860, 1617952), (868, 1603040), (896, 1552945), (932, 1492960), (992, 1402660), (1085, 1282432), (1120, 1242356), (1165, 1194368), (1204, 1155680), (1240, 1122128), (1333, 1043840), (1376, 1011220), (1505, 924544), (1631, 853120), (1720, 808976), (1736, 801520), (1864, 746480), (1984, 701330), (2170, 641216), (2240, 621178), (2330, 597184), (2408, 577840), (2480, 561064), (2666, 521920), (2752, 505610), (3010, 462272), (3262, 426560), (3440, 404488), (3472, 400760), (3728, 373240), (3968, 350665), (4340, 320608), (4480, 310589), (4660, 298592), (4816, 288920), (4960, 280532), (5332, 260960), (5504, 252805), (6020, 231136), (6524, 213280), (6665, 208768), (6880, 202244), (6944, 200380), (7223, 192640), (7456, 186620), (8155, 170624), (8680, 160304), (9320, 149296), (9331, 149120), (9632, 144460), (9920, 140266), (10019, 138880), (10664, 130480), (12040, 115568), (13048, 106640), (13330, 104384), (13760, 101122), (13888, 100190), (14446, 96320), (14912, 93310), (16310, 85312), (17360, 80152), (18640, 74648), (18662, 74560), (19264, 72230), (19840, 70133), (20038, 69440), (21328, 65240), (24080, 57784), (26096, 53320), (26660, 52192), (27520, 50561), (27776, 50095), (28892, 48160), (29824, 46655), (32620, 42656), (34720, 40076), (36115, 38528), (37280, 37324)]