805488775

素因数分解:

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

素因数の和:509

約数の個数: 72

約数和(自身を含む): 1276175264

約数和(自身を除く): 470686489

約数列:

[1, 5, 7, 13, 25, 29, 35, 65, 91, 145, 175, 203, 325, 377, 421, 455, 725, 841, 1015, 1885, 2105, 2275, 2639, 2947, 4205, 5075, 5473, 5887, 9425, 10525, 10933, 12209, 13195, 14735, 21025, 27365, 29435, 38311, 54665, 61045, 65975, 73675, 76531, 85463, 136825, 147175, 158717, 191555, 273325, 305225, 354061, 382655, 427315, 793585, 957775, 1111019, 1770305, 1913275, 2136575, 2478427, 3967925, 4602793, 5555095, 8851525, 12392135, 23013965, 27775475, 32219551, 61960675, 115069825, 161097755, 805488775]

約数ペア:

[(1, 805488775), (5, 161097755), (7, 115069825), (13, 61960675), (25, 32219551), (29, 27775475), (35, 23013965), (65, 12392135), (91, 8851525), (145, 5555095), (175, 4602793), (203, 3967925), (325, 2478427), (377, 2136575), (421, 1913275), (455, 1770305), (725, 1111019), (841, 957775), (1015, 793585), (1885, 427315), (2105, 382655), (2275, 354061), (2639, 305225), (2947, 273325), (4205, 191555), (5075, 158717), (5473, 147175), (5887, 136825), (9425, 85463), (10525, 76531), (10933, 73675), (12209, 65975), (13195, 61045), (14735, 54665), (21025, 38311), (27365, 29435)]