18171790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1051}}^1$

素因数の和:1097

約数の個数: 64

約数和(自身を含む): 42416640

約数和(自身を除く): 24244850

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 65, 70, 91, 95, 130, 133, 182, 190, 247, 266, 455, 494, 665, 910, 1051, 1235, 1330, 1729, 2102, 2470, 3458, 5255, 7357, 8645, 10510, 13663, 14714, 17290, 19969, 27326, 36785, 39938, 68315, 73570, 95641, 99845, 136630, 139783, 191282, 199690, 259597, 279566, 478205, 519194, 698915, 956410, 1297985, 1397830, 1817179, 2595970, 3634358, 9085895, 18171790]

約数ペア:

[(1, 18171790), (2, 9085895), (5, 3634358), (7, 2595970), (10, 1817179), (13, 1397830), (14, 1297985), (19, 956410), (26, 698915), (35, 519194), (38, 478205), (65, 279566), (70, 259597), (91, 199690), (95, 191282), (130, 139783), (133, 136630), (182, 99845), (190, 95641), (247, 73570), (266, 68315), (455, 39938), (494, 36785), (665, 27326), (910, 19969), (1051, 17290), (1235, 14714), (1330, 13663), (1729, 10510), (2102, 8645), (2470, 7357), (3458, 5255)]