20790890640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2221249}}^1$

素因数の和:2221281

約数の個数: 120

約数和(自身を含む): 75193755000

約数和(自身を除く): 54402864360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3120, 4680, 9360, 2221249, 4442498, 6663747, 8884996, 11106245, 13327494, 17769992, 19991241, 22212490, 26654988, 28876237, 33318735, 35539984, 39982482, 44424980, 53309976, 57752474, 66637470, 79964964, 86628711, 88849960, 99956205, 106619952, 115504948, 133274940, 144381185, 159929928, 173257422, 177699920, 199912410, 231009896, 259886133, 266549880, 288762370, 319859856, 346514844, 399824820, 433143555, 462019792, 519772266, 533099760, 577524740, 693029688, 799649640, 866287110, 1039544532, 1155049480, 1299430665, 1386059376, 1599299280, 1732574220, 2079089064, 2310098960, 2598861330, 3465148440, 4158178128, 5197722660, 6930296880, 10395445320, 20790890640]

約数ペア:

[(1, 20790890640), (2, 10395445320), (3, 6930296880), (4, 5197722660), (5, 4158178128), (6, 3465148440), (8, 2598861330), (9, 2310098960), (10, 2079089064), (12, 1732574220), (13, 1599299280), (15, 1386059376), (16, 1299430665), (18, 1155049480), (20, 1039544532), (24, 866287110), (26, 799649640), (30, 693029688), (36, 577524740), (39, 533099760), (40, 519772266), (45, 462019792), (48, 433143555), (52, 399824820), (60, 346514844), (65, 319859856), (72, 288762370), (78, 266549880), (80, 259886133), (90, 231009896), (104, 199912410), (117, 177699920), (120, 173257422), (130, 159929928), (144, 144381185), (156, 133274940), (180, 115504948), (195, 106619952), (208, 99956205), (234, 88849960), (240, 86628711), (260, 79964964), (312, 66637470), (360, 57752474), (390, 53309976), (468, 44424980), (520, 39982482), (585, 35539984), (624, 33318735), (720, 28876237), (780, 26654988), (936, 22212490), (1040, 19991241), (1170, 17769992), (1560, 13327494), (1872, 11106245), (2340, 8884996), (3120, 6663747), (4680, 4442498), (9360, 2221249)]