90636680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1303}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 214064640

約数和(自身を除く): 123427960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 74, 94, 148, 185, 188, 235, 296, 370, 376, 470, 740, 940, 1303, 1480, 1739, 1880, 2606, 3478, 5212, 6515, 6956, 8695, 10424, 13030, 13912, 17390, 26060, 34780, 48211, 52120, 61241, 69560, 96422, 122482, 192844, 241055, 244964, 306205, 385688, 482110, 489928, 612410, 964220, 1224820, 1928440, 2265917, 2449640, 4531834, 9063668, 11329585, 18127336, 22659170, 45318340, 90636680]

約数ペア:

[(1, 90636680), (2, 45318340), (4, 22659170), (5, 18127336), (8, 11329585), (10, 9063668), (20, 4531834), (37, 2449640), (40, 2265917), (47, 1928440), (74, 1224820), (94, 964220), (148, 612410), (185, 489928), (188, 482110), (235, 385688), (296, 306205), (370, 244964), (376, 241055), (470, 192844), (740, 122482), (940, 96422), (1303, 69560), (1480, 61241), (1739, 52120), (1880, 48211), (2606, 34780), (3478, 26060), (5212, 17390), (6515, 13912), (6956, 13030), (8695, 10424)]