19479280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14323}}^1$

素因数の和:14353

約数の個数: 40

約数和(自身を含む): 47956752

約数和(自身を除く): 28477472

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14323, 28646, 57292, 71615, 114584, 143230, 229168, 243491, 286460, 486982, 572920, 973964, 1145840, 1217455, 1947928, 2434910, 3895856, 4869820, 9739640, 19479280]

約数ペア:

[(1, 19479280), (2, 9739640), (4, 4869820), (5, 3895856), (8, 2434910), (10, 1947928), (16, 1217455), (17, 1145840), (20, 973964), (34, 572920), (40, 486982), (68, 286460), (80, 243491), (85, 229168), (136, 143230), (170, 114584), (272, 71615), (340, 57292), (680, 28646), (1360, 14323)]