18848570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{587}}^1$

素因数の和:639

約数の個数: 48

約数和(自身を含む): 38737440

約数和(自身を除く): 19888870

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 169, 190, 247, 338, 494, 587, 845, 1174, 1235, 1690, 2470, 2935, 3211, 5870, 6422, 7631, 11153, 15262, 16055, 22306, 32110, 38155, 55765, 76310, 99203, 111530, 144989, 198406, 289978, 496015, 724945, 992030, 1449890, 1884857, 3769714, 9424285, 18848570]

約数ペア:

[(1, 18848570), (2, 9424285), (5, 3769714), (10, 1884857), (13, 1449890), (19, 992030), (26, 724945), (38, 496015), (65, 289978), (95, 198406), (130, 144989), (169, 111530), (190, 99203), (247, 76310), (338, 55765), (494, 38155), (587, 32110), (845, 22306), (1174, 16055), (1235, 15262), (1690, 11153), (2470, 7631), (2935, 6422), (3211, 5870)]