31590520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{769}}^1$

素因数の和:872

約数の個数: 64

約数和(自身を含む): 77616000

約数和(自身を除く): 46025480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 260, 316, 395, 520, 632, 769, 790, 1027, 1538, 1580, 2054, 3076, 3160, 3845, 4108, 5135, 6152, 7690, 8216, 9997, 10270, 15380, 19994, 20540, 30760, 39988, 41080, 49985, 60751, 79976, 99970, 121502, 199940, 243004, 303755, 399880, 486008, 607510, 789763, 1215020, 1579526, 2430040, 3159052, 3948815, 6318104, 7897630, 15795260, 31590520]

約数ペア:

[(1, 31590520), (2, 15795260), (4, 7897630), (5, 6318104), (8, 3948815), (10, 3159052), (13, 2430040), (20, 1579526), (26, 1215020), (40, 789763), (52, 607510), (65, 486008), (79, 399880), (104, 303755), (130, 243004), (158, 199940), (260, 121502), (316, 99970), (395, 79976), (520, 60751), (632, 49985), (769, 41080), (790, 39988), (1027, 30760), (1538, 20540), (1580, 19994), (2054, 15380), (3076, 10270), (3160, 9997), (3845, 8216), (4108, 7690), (5135, 6152)]