1648400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:348

約数の個数: 60

約数和(自身を含む): 4278372

約数和(自身を除く): 2629972

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 317, 325, 400, 520, 634, 650, 1040, 1268, 1300, 1585, 2536, 2600, 3170, 4121, 5072, 5200, 6340, 7925, 8242, 12680, 15850, 16484, 20605, 25360, 31700, 32968, 41210, 63400, 65936, 82420, 103025, 126800, 164840, 206050, 329680, 412100, 824200, 1648400]

約数ペア:

[(1, 1648400), (2, 824200), (4, 412100), (5, 329680), (8, 206050), (10, 164840), (13, 126800), (16, 103025), (20, 82420), (25, 65936), (26, 63400), (40, 41210), (50, 32968), (52, 31700), (65, 25360), (80, 20605), (100, 16484), (104, 15850), (130, 12680), (200, 8242), (208, 7925), (260, 6340), (317, 5200), (325, 5072), (400, 4121), (520, 3170), (634, 2600), (650, 2536), (1040, 1585), (1268, 1300)]