31053320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{317}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 73267200

約数和(自身を除く): 42213880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 248, 310, 316, 317, 395, 620, 632, 634, 790, 1240, 1268, 1580, 1585, 2449, 2536, 3160, 3170, 4898, 6340, 9796, 9827, 12245, 12680, 19592, 19654, 24490, 25043, 39308, 48980, 49135, 50086, 78616, 97960, 98270, 100172, 125215, 196540, 200344, 250430, 393080, 500860, 776333, 1001720, 1552666, 3105332, 3881665, 6210664, 7763330, 15526660, 31053320]

約数ペア:

[(1, 31053320), (2, 15526660), (4, 7763330), (5, 6210664), (8, 3881665), (10, 3105332), (20, 1552666), (31, 1001720), (40, 776333), (62, 500860), (79, 393080), (124, 250430), (155, 200344), (158, 196540), (248, 125215), (310, 100172), (316, 98270), (317, 97960), (395, 78616), (620, 50086), (632, 49135), (634, 48980), (790, 39308), (1240, 25043), (1268, 24490), (1580, 19654), (1585, 19592), (2449, 12680), (2536, 12245), (3160, 9827), (3170, 9796), (4898, 6340)]