9018640

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1427}}^1$

素因数の和:1519

約数の個数: 40

約数和(自身を含む): 21248640

約数和(自身を除く): 12230000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1427, 1580, 2854, 3160, 5708, 6320, 7135, 11416, 14270, 22832, 28540, 57080, 112733, 114160, 225466, 450932, 563665, 901864, 1127330, 1803728, 2254660, 4509320, 9018640]

約数ペア:

[(1, 9018640), (2, 4509320), (4, 2254660), (5, 1803728), (8, 1127330), (10, 901864), (16, 563665), (20, 450932), (40, 225466), (79, 114160), (80, 112733), (158, 57080), (316, 28540), (395, 22832), (632, 14270), (790, 11416), (1264, 7135), (1427, 6320), (1580, 5708), (2854, 3160)]