278001906

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{2243}}^1$

素因数の和:2495

約数の個数: 64

約数和(自身を含む): 687633408

約数和(自身を除く): 409631502

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 227, 273, 454, 546, 681, 1362, 1589, 2243, 2951, 3178, 4486, 4767, 5902, 6729, 8853, 9534, 13458, 15701, 17706, 20657, 29159, 31402, 41314, 47103, 58318, 61971, 87477, 94206, 123942, 174954, 204113, 408226, 509161, 612339, 1018322, 1224678, 1527483, 3054966, 3564127, 6619093, 7128254, 10692381, 13238186, 19857279, 21384762, 39714558, 46333651, 92667302, 139000953, 278001906]

約数ペア:

[(1, 278001906), (2, 139000953), (3, 92667302), (6, 46333651), (7, 39714558), (13, 21384762), (14, 19857279), (21, 13238186), (26, 10692381), (39, 7128254), (42, 6619093), (78, 3564127), (91, 3054966), (182, 1527483), (227, 1224678), (273, 1018322), (454, 612339), (546, 509161), (681, 408226), (1362, 204113), (1589, 174954), (2243, 123942), (2951, 94206), (3178, 87477), (4486, 61971), (4767, 58318), (5902, 47103), (6729, 41314), (8853, 31402), (9534, 29159), (13458, 20657), (15701, 17706)]