278330962

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{80489}}^1$

素因数の和:80530

約数の個数: 32

約数和(自身を含む): 540892800

約数和(自身を除く): 262561838

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 80489, 160978, 563423, 1046357, 1126846, 1529291, 2092714, 3058582, 7324499, 10705037, 14648998, 19880783, 21410074, 39761566, 139165481, 278330962]

約数ペア:

[(1, 278330962), (2, 139165481), (7, 39761566), (13, 21410074), (14, 19880783), (19, 14648998), (26, 10705037), (38, 7324499), (91, 3058582), (133, 2092714), (182, 1529291), (247, 1126846), (266, 1046357), (494, 563423), (1729, 160978), (3458, 80489)]