31212700

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:319

約数の個数: 72

約数和(自身を含む): 71870400

約数和(自身を除く): 40657700

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 47, 50, 58, 94, 100, 116, 145, 188, 229, 235, 290, 458, 470, 580, 725, 916, 940, 1145, 1175, 1363, 1450, 2290, 2350, 2726, 2900, 4580, 4700, 5452, 5725, 6641, 6815, 10763, 11450, 13282, 13630, 21526, 22900, 26564, 27260, 33205, 34075, 43052, 53815, 66410, 68150, 107630, 132820, 136300, 166025, 215260, 269075, 312127, 332050, 538150, 624254, 664100, 1076300, 1248508, 1560635, 3121270, 6242540, 7803175, 15606350, 31212700]

約数ペア:

[(1, 31212700), (2, 15606350), (4, 7803175), (5, 6242540), (10, 3121270), (20, 1560635), (25, 1248508), (29, 1076300), (47, 664100), (50, 624254), (58, 538150), (94, 332050), (100, 312127), (116, 269075), (145, 215260), (188, 166025), (229, 136300), (235, 132820), (290, 107630), (458, 68150), (470, 66410), (580, 53815), (725, 43052), (916, 34075), (940, 33205), (1145, 27260), (1175, 26564), (1363, 22900), (1450, 21526), (2290, 13630), (2350, 13282), (2726, 11450), (2900, 10763), (4580, 6815), (4700, 6641), (5452, 5725)]