407890240

素因数分解:

$2^6\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4021}}^1$

素因数の和:4355

約数の個数: 56

約数和(自身を含む): 974594952

約数和(自身を除く): 566704712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 317, 320, 634, 1268, 1585, 2536, 3170, 4021, 5072, 6340, 8042, 10144, 12680, 16084, 20105, 20288, 25360, 32168, 40210, 50720, 64336, 80420, 101440, 128672, 160840, 257344, 321680, 643360, 1274657, 1286720, 2549314, 5098628, 6373285, 10197256, 12746570, 20394512, 25493140, 40789024, 50986280, 81578048, 101972560, 203945120, 407890240]

約数ペア:

[(1, 407890240), (2, 203945120), (4, 101972560), (5, 81578048), (8, 50986280), (10, 40789024), (16, 25493140), (20, 20394512), (32, 12746570), (40, 10197256), (64, 6373285), (80, 5098628), (160, 2549314), (317, 1286720), (320, 1274657), (634, 643360), (1268, 321680), (1585, 257344), (2536, 160840), (3170, 128672), (4021, 101440), (5072, 80420), (6340, 64336), (8042, 50720), (10144, 40210), (12680, 32168), (16084, 25360), (20105, 20288)]