90915560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{467}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 212958720

約数和(自身を除く): 122043160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 157, 248, 310, 314, 467, 620, 628, 785, 934, 1240, 1256, 1570, 1868, 2335, 3140, 3736, 4670, 4867, 6280, 9340, 9734, 14477, 18680, 19468, 24335, 28954, 38936, 48670, 57908, 72385, 73319, 97340, 115816, 144770, 146638, 194680, 289540, 293276, 366595, 579080, 586552, 733190, 1466380, 2272889, 2932760, 4545778, 9091556, 11364445, 18183112, 22728890, 45457780, 90915560]

約数ペア:

[(1, 90915560), (2, 45457780), (4, 22728890), (5, 18183112), (8, 11364445), (10, 9091556), (20, 4545778), (31, 2932760), (40, 2272889), (62, 1466380), (124, 733190), (155, 586552), (157, 579080), (248, 366595), (310, 293276), (314, 289540), (467, 194680), (620, 146638), (628, 144770), (785, 115816), (934, 97340), (1240, 73319), (1256, 72385), (1570, 57908), (1868, 48670), (2335, 38936), (3140, 28954), (3736, 24335), (4670, 19468), (4867, 18680), (6280, 14477), (9340, 9734)]