655197020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:339

約数の個数: 96

約数和(自身を含む): 1456697088

約数和(自身を除く): 801500068

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 83, 86, 134, 137, 166, 172, 215, 268, 274, 332, 335, 415, 430, 548, 670, 685, 830, 860, 1340, 1370, 1660, 2740, 2881, 3569, 5561, 5762, 5891, 7138, 9179, 11122, 11371, 11524, 11782, 14276, 14405, 17845, 18358, 22244, 22742, 23564, 27805, 28810, 29455, 35690, 36716, 45484, 45895, 55610, 56855, 57620, 58910, 71380, 91790, 111220, 113710, 117820, 183580, 227420, 239123, 394697, 478246, 488953, 761857, 789394, 956492, 977906, 1195615, 1523714, 1578788, 1955812, 1973485, 2391230, 2444765, 3047428, 3809285, 3946970, 4782460, 4889530, 7618570, 7893940, 9779060, 15237140, 32759851, 65519702, 131039404, 163799255, 327598510, 655197020]

約数ペア:

[(1, 655197020), (2, 327598510), (4, 163799255), (5, 131039404), (10, 65519702), (20, 32759851), (43, 15237140), (67, 9779060), (83, 7893940), (86, 7618570), (134, 4889530), (137, 4782460), (166, 3946970), (172, 3809285), (215, 3047428), (268, 2444765), (274, 2391230), (332, 1973485), (335, 1955812), (415, 1578788), (430, 1523714), (548, 1195615), (670, 977906), (685, 956492), (830, 789394), (860, 761857), (1340, 488953), (1370, 478246), (1660, 394697), (2740, 239123), (2881, 227420), (3569, 183580), (5561, 117820), (5762, 113710), (5891, 111220), (7138, 91790), (9179, 71380), (11122, 58910), (11371, 57620), (11524, 56855), (11782, 55610), (14276, 45895), (14405, 45484), (17845, 36716), (18358, 35690), (22244, 29455), (22742, 28810), (23564, 27805)]