15998775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 29060640

約数和(自身を除く): 13061865

約数列:

[1, 3, 5, 13, 15, 25, 39, 61, 65, 75, 183, 195, 269, 305, 325, 793, 807, 915, 975, 1345, 1525, 2379, 3497, 3965, 4035, 4575, 6725, 10491, 11895, 16409, 17485, 19825, 20175, 49227, 52455, 59475, 82045, 87425, 213317, 246135, 262275, 410225, 639951, 1066585, 1230675, 3199755, 5332925, 15998775]

約数ペア:

[(1, 15998775), (3, 5332925), (5, 3199755), (13, 1230675), (15, 1066585), (25, 639951), (39, 410225), (61, 262275), (65, 246135), (75, 213317), (183, 87425), (195, 82045), (269, 59475), (305, 52455), (325, 49227), (793, 20175), (807, 19825), (915, 17485), (975, 16409), (1345, 11895), (1525, 10491), (2379, 6725), (3497, 4575), (3965, 4035)]