18081680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 45425664

約数和(自身を除く): 27343984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 92, 115, 124, 155, 184, 230, 248, 310, 317, 368, 460, 496, 620, 634, 713, 920, 1240, 1268, 1426, 1585, 1840, 2480, 2536, 2852, 3170, 3565, 5072, 5704, 6340, 7130, 7291, 9827, 11408, 12680, 14260, 14582, 19654, 25360, 28520, 29164, 36455, 39308, 49135, 57040, 58328, 72910, 78616, 98270, 116656, 145820, 157232, 196540, 226021, 291640, 393080, 452042, 583280, 786160, 904084, 1130105, 1808168, 2260210, 3616336, 4520420, 9040840, 18081680]

約数ペア:

[(1, 18081680), (2, 9040840), (4, 4520420), (5, 3616336), (8, 2260210), (10, 1808168), (16, 1130105), (20, 904084), (23, 786160), (31, 583280), (40, 452042), (46, 393080), (62, 291640), (80, 226021), (92, 196540), (115, 157232), (124, 145820), (155, 116656), (184, 98270), (230, 78616), (248, 72910), (310, 58328), (317, 57040), (368, 49135), (460, 39308), (496, 36455), (620, 29164), (634, 28520), (713, 25360), (920, 19654), (1240, 14582), (1268, 14260), (1426, 12680), (1585, 11408), (1840, 9827), (2480, 7291), (2536, 7130), (2852, 6340), (3170, 5704), (3565, 5072)]