638233674

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{3391}}^1$

素因数の和:3555

約数の個数: 64

約数和(自身を含む): 1458831360

約数和(自身を除く): 820597686

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 114, 127, 247, 254, 381, 494, 741, 762, 1482, 1651, 2413, 3302, 3391, 4826, 4953, 6782, 7239, 9906, 10173, 14478, 20346, 31369, 44083, 62738, 64429, 88166, 94107, 128858, 132249, 188214, 193287, 264498, 386574, 430657, 837577, 861314, 1291971, 1675154, 2512731, 2583942, 5025462, 5598541, 8182483, 11197082, 16364966, 16795623, 24547449, 33591246, 49094898, 106372279, 212744558, 319116837, 638233674]

約数ペア:

[(1, 638233674), (2, 319116837), (3, 212744558), (6, 106372279), (13, 49094898), (19, 33591246), (26, 24547449), (38, 16795623), (39, 16364966), (57, 11197082), (78, 8182483), (114, 5598541), (127, 5025462), (247, 2583942), (254, 2512731), (381, 1675154), (494, 1291971), (741, 861314), (762, 837577), (1482, 430657), (1651, 386574), (2413, 264498), (3302, 193287), (3391, 188214), (4826, 132249), (4953, 128858), (6782, 94107), (7239, 88166), (9906, 64429), (10173, 62738), (14478, 44083), (20346, 31369)]