20127120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6451}}^1$

素因数の和:6480

約数の個数: 80

約数和(自身を含む): 67204032

約数和(自身を除く): 47076912

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6451, 12902, 19353, 25804, 32255, 38706, 51608, 64510, 77412, 83863, 96765, 103216, 129020, 154824, 167726, 193530, 251589, 258040, 309648, 335452, 387060, 419315, 503178, 516080, 670904, 774120, 838630, 1006356, 1257945, 1341808, 1548240, 1677260, 2012712, 2515890, 3354520, 4025424, 5031780, 6709040, 10063560, 20127120]

約数ペア:

[(1, 20127120), (2, 10063560), (3, 6709040), (4, 5031780), (5, 4025424), (6, 3354520), (8, 2515890), (10, 2012712), (12, 1677260), (13, 1548240), (15, 1341808), (16, 1257945), (20, 1006356), (24, 838630), (26, 774120), (30, 670904), (39, 516080), (40, 503178), (48, 419315), (52, 387060), (60, 335452), (65, 309648), (78, 258040), (80, 251589), (104, 193530), (120, 167726), (130, 154824), (156, 129020), (195, 103216), (208, 96765), (240, 83863), (260, 77412), (312, 64510), (390, 51608), (520, 38706), (624, 32255), (780, 25804), (1040, 19353), (1560, 12902), (3120, 6451)]