31552040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1291}}^1$

素因数の和:1362

約数の個数: 64

約数和(自身を含む): 78140160

約数和(自身を除く): 46588120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 940, 1222, 1291, 1880, 2444, 2582, 3055, 4888, 5164, 6110, 6455, 10328, 12220, 12910, 16783, 24440, 25820, 33566, 51640, 60677, 67132, 83915, 121354, 134264, 167830, 242708, 303385, 335660, 485416, 606770, 671320, 788801, 1213540, 1577602, 2427080, 3155204, 3944005, 6310408, 7888010, 15776020, 31552040]

約数ペア:

[(1, 31552040), (2, 15776020), (4, 7888010), (5, 6310408), (8, 3944005), (10, 3155204), (13, 2427080), (20, 1577602), (26, 1213540), (40, 788801), (47, 671320), (52, 606770), (65, 485416), (94, 335660), (104, 303385), (130, 242708), (188, 167830), (235, 134264), (260, 121354), (376, 83915), (470, 67132), (520, 60677), (611, 51640), (940, 33566), (1222, 25820), (1291, 24440), (1880, 16783), (2444, 12910), (2582, 12220), (3055, 10328), (4888, 6455), (5164, 6110)]