28496845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 41157648

約数和(自身を除く): 12660803

約数列:

[1, 5, 13, 17, 37, 41, 65, 85, 185, 205, 221, 289, 481, 533, 629, 697, 1105, 1445, 1517, 2405, 2665, 3145, 3485, 3757, 7585, 8177, 9061, 10693, 11849, 18785, 19721, 25789, 40885, 45305, 53465, 59245, 98605, 128945, 139009, 154037, 335257, 438413, 695045, 770185, 1676285, 2192065, 5699369, 28496845]

約数ペア:

[(1, 28496845), (5, 5699369), (13, 2192065), (17, 1676285), (37, 770185), (41, 695045), (65, 438413), (85, 335257), (185, 154037), (205, 139009), (221, 128945), (289, 98605), (481, 59245), (533, 53465), (629, 45305), (697, 40885), (1105, 25789), (1445, 19721), (1517, 18785), (2405, 11849), (2665, 10693), (3145, 9061), (3485, 8177), (3757, 7585)]