31251420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:313

約数の個数: 120

約数和(自身を含む): 99525888

約数和(自身を除く): 68274468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 101, 108, 135, 162, 180, 191, 202, 270, 303, 324, 382, 404, 405, 505, 540, 573, 606, 764, 810, 909, 955, 1010, 1146, 1212, 1515, 1620, 1719, 1818, 1910, 2020, 2292, 2727, 2865, 3030, 3438, 3636, 3820, 4545, 5157, 5454, 5730, 6060, 6876, 8181, 8595, 9090, 10314, 10908, 11460, 13635, 15471, 16362, 17190, 18180, 19291, 20628, 25785, 27270, 30942, 32724, 34380, 38582, 40905, 51570, 54540, 57873, 61884, 77164, 77355, 81810, 96455, 103140, 115746, 154710, 163620, 173619, 192910, 231492, 289365, 309420, 347238, 385820, 520857, 578730, 694476, 868095, 1041714, 1157460, 1562571, 1736190, 2083428, 2604285, 3125142, 3472380, 5208570, 6250284, 7812855, 10417140, 15625710, 31251420]

約数ペア:

[(1, 31251420), (2, 15625710), (3, 10417140), (4, 7812855), (5, 6250284), (6, 5208570), (9, 3472380), (10, 3125142), (12, 2604285), (15, 2083428), (18, 1736190), (20, 1562571), (27, 1157460), (30, 1041714), (36, 868095), (45, 694476), (54, 578730), (60, 520857), (81, 385820), (90, 347238), (101, 309420), (108, 289365), (135, 231492), (162, 192910), (180, 173619), (191, 163620), (202, 154710), (270, 115746), (303, 103140), (324, 96455), (382, 81810), (404, 77355), (405, 77164), (505, 61884), (540, 57873), (573, 54540), (606, 51570), (764, 40905), (810, 38582), (909, 34380), (955, 32724), (1010, 30942), (1146, 27270), (1212, 25785), (1515, 20628), (1620, 19291), (1719, 18180), (1818, 17190), (1910, 16362), (2020, 15471), (2292, 13635), (2727, 11460), (2865, 10908), (3030, 10314), (3438, 9090), (3636, 8595), (3820, 8181), (4545, 6876), (5157, 6060), (5454, 5730)]