51512500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:359

約数の個数: 72

約数和(自身を含む): 121726584

約数和(自身を除く): 70214084

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 317, 325, 500, 625, 634, 650, 1250, 1268, 1300, 1585, 1625, 2500, 3125, 3170, 3250, 4121, 6250, 6340, 6500, 7925, 8125, 8242, 12500, 15850, 16250, 16484, 20605, 31700, 32500, 39625, 40625, 41210, 79250, 81250, 82420, 103025, 158500, 162500, 198125, 206050, 396250, 412100, 515125, 792500, 990625, 1030250, 1981250, 2060500, 2575625, 3962500, 5151250, 10302500, 12878125, 25756250, 51512500]

約数ペア:

[(1, 51512500), (2, 25756250), (4, 12878125), (5, 10302500), (10, 5151250), (13, 3962500), (20, 2575625), (25, 2060500), (26, 1981250), (50, 1030250), (52, 990625), (65, 792500), (100, 515125), (125, 412100), (130, 396250), (250, 206050), (260, 198125), (317, 162500), (325, 158500), (500, 103025), (625, 82420), (634, 81250), (650, 79250), (1250, 41210), (1268, 40625), (1300, 39625), (1585, 32500), (1625, 31700), (2500, 20605), (3125, 16484), (3170, 16250), (3250, 15850), (4121, 12500), (6250, 8242), (6340, 8125), (6500, 7925)]