279969320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{3221}}^1$

素因数の和:3326

約数の個数: 64

約数和(自身を含む): 657674640

約数和(自身を除く): 377705320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 106, 164, 205, 212, 265, 328, 410, 424, 530, 820, 1060, 1640, 2120, 2173, 3221, 4346, 6442, 8692, 10865, 12884, 16105, 17384, 21730, 25768, 32210, 43460, 64420, 86920, 128840, 132061, 170713, 264122, 341426, 528244, 660305, 682852, 853565, 1056488, 1320610, 1365704, 1707130, 2641220, 3414260, 5282440, 6828520, 6999233, 13998466, 27996932, 34996165, 55993864, 69992330, 139984660, 279969320]

約数ペア:

[(1, 279969320), (2, 139984660), (4, 69992330), (5, 55993864), (8, 34996165), (10, 27996932), (20, 13998466), (40, 6999233), (41, 6828520), (53, 5282440), (82, 3414260), (106, 2641220), (164, 1707130), (205, 1365704), (212, 1320610), (265, 1056488), (328, 853565), (410, 682852), (424, 660305), (530, 528244), (820, 341426), (1060, 264122), (1640, 170713), (2120, 132061), (2173, 128840), (3221, 86920), (4346, 64420), (6442, 43460), (8692, 32210), (10865, 25768), (12884, 21730), (16105, 17384)]