82420000

素因数分解:

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

素因数の和:360

約数の個数: 120

約数和(自身を含む): 219051756

約数和(自身を除く): 136631756

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 317, 325, 400, 416, 500, 520, 625, 634, 650, 800, 1000, 1040, 1250, 1268, 1300, 1585, 1625, 2000, 2080, 2500, 2536, 2600, 3170, 3250, 4000, 4121, 5000, 5072, 5200, 6340, 6500, 7925, 8125, 8242, 10000, 10144, 10400, 12680, 13000, 15850, 16250, 16484, 20000, 20605, 25360, 26000, 31700, 32500, 32968, 39625, 41210, 50720, 52000, 63400, 65000, 65936, 79250, 82420, 103025, 126800, 130000, 131872, 158500, 164840, 198125, 206050, 253600, 260000, 317000, 329680, 396250, 412100, 515125, 634000, 659360, 792500, 824200, 1030250, 1268000, 1585000, 1648400, 2060500, 2575625, 3170000, 3296800, 4121000, 5151250, 6340000, 8242000, 10302500, 16484000, 20605000, 41210000, 82420000]

約数ペア:

[(1, 82420000), (2, 41210000), (4, 20605000), (5, 16484000), (8, 10302500), (10, 8242000), (13, 6340000), (16, 5151250), (20, 4121000), (25, 3296800), (26, 3170000), (32, 2575625), (40, 2060500), (50, 1648400), (52, 1585000), (65, 1268000), (80, 1030250), (100, 824200), (104, 792500), (125, 659360), (130, 634000), (160, 515125), (200, 412100), (208, 396250), (250, 329680), (260, 317000), (317, 260000), (325, 253600), (400, 206050), (416, 198125), (500, 164840), (520, 158500), (625, 131872), (634, 130000), (650, 126800), (800, 103025), (1000, 82420), (1040, 79250), (1250, 65936), (1268, 65000), (1300, 63400), (1585, 52000), (1625, 50720), (2000, 41210), (2080, 39625), (2500, 32968), (2536, 32500), (2600, 31700), (3170, 26000), (3250, 25360), (4000, 20605), (4121, 20000), (5000, 16484), (5072, 16250), (5200, 15850), (6340, 13000), (6500, 12680), (7925, 10400), (8125, 10144), (8242, 10000)]