389799990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{8821}}^1$

素因数の和:9325

約数の個数: 48

約数和(自身を含む): 1015659216

約数和(自身を除く): 625859226

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 491, 982, 1473, 2455, 2946, 4419, 4910, 7365, 8821, 8838, 14730, 17642, 22095, 26463, 44105, 44190, 52926, 79389, 88210, 132315, 158778, 264630, 396945, 793890, 4331111, 8662222, 12993333, 21655555, 25986666, 38979999, 43311110, 64966665, 77959998, 129933330, 194899995, 389799990]

約数ペア:

[(1, 389799990), (2, 194899995), (3, 129933330), (5, 77959998), (6, 64966665), (9, 43311110), (10, 38979999), (15, 25986666), (18, 21655555), (30, 12993333), (45, 8662222), (90, 4331111), (491, 793890), (982, 396945), (1473, 264630), (2455, 158778), (2946, 132315), (4419, 88210), (4910, 79389), (7365, 52926), (8821, 44190), (8838, 44105), (14730, 26463), (17642, 22095)]