65124280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 128

約数和(自身を含む): 171460800

約数和(自身を除く): 106336520

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 53, 65, 68, 85, 104, 106, 130, 136, 139, 170, 212, 221, 260, 265, 278, 340, 424, 442, 520, 530, 556, 680, 689, 695, 884, 901, 1060, 1105, 1112, 1378, 1390, 1768, 1802, 1807, 2120, 2210, 2363, 2756, 2780, 3445, 3604, 3614, 4420, 4505, 4726, 5512, 5560, 6890, 7208, 7228, 7367, 8840, 9010, 9035, 9452, 11713, 11815, 13780, 14456, 14734, 18020, 18070, 18904, 23426, 23630, 27560, 29468, 30719, 36040, 36140, 36835, 46852, 47260, 58565, 58936, 61438, 72280, 73670, 93704, 94520, 95771, 117130, 122876, 125239, 147340, 153595, 191542, 234260, 245752, 250478, 294680, 307190, 383084, 468520, 478855, 500956, 614380, 626195, 766168, 957710, 1001912, 1228760, 1252390, 1628107, 1915420, 2504780, 3256214, 3830840, 5009560, 6512428, 8140535, 13024856, 16281070, 32562140, 65124280]

約数ペア:

[(1, 65124280), (2, 32562140), (4, 16281070), (5, 13024856), (8, 8140535), (10, 6512428), (13, 5009560), (17, 3830840), (20, 3256214), (26, 2504780), (34, 1915420), (40, 1628107), (52, 1252390), (53, 1228760), (65, 1001912), (68, 957710), (85, 766168), (104, 626195), (106, 614380), (130, 500956), (136, 478855), (139, 468520), (170, 383084), (212, 307190), (221, 294680), (260, 250478), (265, 245752), (278, 234260), (340, 191542), (424, 153595), (442, 147340), (520, 125239), (530, 122876), (556, 117130), (680, 95771), (689, 94520), (695, 93704), (884, 73670), (901, 72280), (1060, 61438), (1105, 58936), (1112, 58565), (1378, 47260), (1390, 46852), (1768, 36835), (1802, 36140), (1807, 36040), (2120, 30719), (2210, 29468), (2363, 27560), (2756, 23630), (2780, 23426), (3445, 18904), (3604, 18070), (3614, 18020), (4420, 14734), (4505, 14456), (4726, 13780), (5512, 11815), (5560, 11713), (6890, 9452), (7208, 9035), (7228, 9010), (7367, 8840)]