20450580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 59875200

約数和(自身を除く): 39424620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 59, 60, 106, 109, 118, 159, 177, 212, 218, 236, 265, 295, 318, 327, 354, 436, 530, 545, 590, 636, 654, 708, 795, 885, 1060, 1090, 1180, 1308, 1590, 1635, 1770, 2180, 3127, 3180, 3270, 3540, 5777, 6254, 6431, 6540, 9381, 11554, 12508, 12862, 15635, 17331, 18762, 19293, 23108, 25724, 28885, 31270, 32155, 34662, 37524, 38586, 46905, 57770, 62540, 64310, 69324, 77172, 86655, 93810, 96465, 115540, 128620, 173310, 187620, 192930, 340843, 346620, 385860, 681686, 1022529, 1363372, 1704215, 2045058, 3408430, 4090116, 5112645, 6816860, 10225290, 20450580]

約数ペア:

[(1, 20450580), (2, 10225290), (3, 6816860), (4, 5112645), (5, 4090116), (6, 3408430), (10, 2045058), (12, 1704215), (15, 1363372), (20, 1022529), (30, 681686), (53, 385860), (59, 346620), (60, 340843), (106, 192930), (109, 187620), (118, 173310), (159, 128620), (177, 115540), (212, 96465), (218, 93810), (236, 86655), (265, 77172), (295, 69324), (318, 64310), (327, 62540), (354, 57770), (436, 46905), (530, 38586), (545, 37524), (590, 34662), (636, 32155), (654, 31270), (708, 28885), (795, 25724), (885, 23108), (1060, 19293), (1090, 18762), (1180, 17331), (1308, 15635), (1590, 12862), (1635, 12508), (1770, 11554), (2180, 9381), (3127, 6540), (3180, 6431), (3270, 6254), (3540, 5777)]