28738275

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 50100960

約数和(自身を除く): 21362685

約数列:

[1, 3, 5, 15, 25, 29, 73, 75, 87, 145, 181, 219, 365, 435, 543, 725, 905, 1095, 1825, 2117, 2175, 2715, 4525, 5249, 5475, 6351, 10585, 13213, 13575, 15747, 26245, 31755, 39639, 52925, 66065, 78735, 131225, 158775, 198195, 330325, 383177, 393675, 990975, 1149531, 1915885, 5747655, 9579425, 28738275]

約数ペア:

[(1, 28738275), (3, 9579425), (5, 5747655), (15, 1915885), (25, 1149531), (29, 990975), (73, 393675), (75, 383177), (87, 330325), (145, 198195), (181, 158775), (219, 131225), (365, 78735), (435, 66065), (543, 52925), (725, 39639), (905, 31755), (1095, 26245), (1825, 15747), (2117, 13575), (2175, 13213), (2715, 10585), (4525, 6351), (5249, 5475)]