27775475

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 43955520

約数和(自身を除く): 16180045

約数列:

[1, 5, 7, 13, 25, 29, 35, 65, 91, 145, 175, 203, 325, 377, 421, 455, 725, 1015, 1885, 2105, 2275, 2639, 2947, 5075, 5473, 9425, 10525, 12209, 13195, 14735, 27365, 38311, 61045, 65975, 73675, 85463, 136825, 158717, 191555, 305225, 427315, 793585, 957775, 1111019, 2136575, 3967925, 5555095, 27775475]

約数ペア:

[(1, 27775475), (5, 5555095), (7, 3967925), (13, 2136575), (25, 1111019), (29, 957775), (35, 793585), (65, 427315), (91, 305225), (145, 191555), (175, 158717), (203, 136825), (325, 85463), (377, 73675), (421, 65975), (455, 61045), (725, 38311), (1015, 27365), (1885, 14735), (2105, 13195), (2275, 12209), (2639, 10525), (2947, 9425), (5075, 5473)]