397434940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{123427}}^1$

素因数の和:123466

約数の個数: 48

約数和(自身を含む): 995323392

約数和(自身を除く): 597888452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 123427, 246854, 493708, 617135, 863989, 1234270, 1727978, 2468540, 2838821, 3455956, 4319945, 5677642, 8639890, 11355284, 14194105, 17279780, 19871747, 28388210, 39743494, 56776420, 79486988, 99358735, 198717470, 397434940]

約数ペア:

[(1, 397434940), (2, 198717470), (4, 99358735), (5, 79486988), (7, 56776420), (10, 39743494), (14, 28388210), (20, 19871747), (23, 17279780), (28, 14194105), (35, 11355284), (46, 8639890), (70, 5677642), (92, 4319945), (115, 3455956), (140, 2838821), (161, 2468540), (230, 1727978), (322, 1234270), (460, 863989), (644, 617135), (805, 493708), (1610, 246854), (3220, 123427)]