19847075

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:152

約数の個数: 36

約数和(自身を含む): 27180552

約数和(自身を除く): 7333477

約数列:

[1, 5, 17, 25, 41, 67, 85, 205, 289, 335, 425, 697, 1025, 1139, 1445, 1675, 2747, 3485, 5695, 7225, 11849, 13735, 17425, 19363, 28475, 46699, 59245, 68675, 96815, 233495, 296225, 484075, 793883, 1167475, 3969415, 19847075]

約数ペア:

[(1, 19847075), (5, 3969415), (17, 1167475), (25, 793883), (41, 484075), (67, 296225), (85, 233495), (205, 96815), (289, 68675), (335, 59245), (425, 46699), (697, 28475), (1025, 19363), (1139, 17425), (1445, 13735), (1675, 11849), (2747, 7225), (3485, 5695)]