393669885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1\times {\mathrm{331}}^1$

素因数の和:634

約数の個数: 64

約数和(自身を含む): 740450304

約数和(自身を除く): 346780419

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 241, 329, 331, 705, 723, 987, 993, 1205, 1645, 1655, 1687, 2317, 3615, 4935, 4965, 5061, 6951, 8435, 11327, 11585, 15557, 25305, 33981, 34755, 46671, 56635, 77785, 79289, 79771, 108899, 169905, 233355, 237867, 239313, 326697, 396445, 398855, 544495, 558397, 1189335, 1196565, 1633485, 1675191, 2791985, 3749237, 8375955, 11247711, 18746185, 26244659, 56238555, 78733977, 131223295, 393669885]

約数ペア:

[(1, 393669885), (3, 131223295), (5, 78733977), (7, 56238555), (15, 26244659), (21, 18746185), (35, 11247711), (47, 8375955), (105, 3749237), (141, 2791985), (235, 1675191), (241, 1633485), (329, 1196565), (331, 1189335), (705, 558397), (723, 544495), (987, 398855), (993, 396445), (1205, 326697), (1645, 239313), (1655, 237867), (1687, 233355), (2317, 169905), (3615, 108899), (4935, 79771), (4965, 79289), (5061, 77785), (6951, 56635), (8435, 46671), (11327, 34755), (11585, 33981), (15557, 25305)]