1415440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1361}}^1$

素因数の和:1387

約数の個数: 40

約数和(自身を含む): 3546648

約数和(自身を除く): 2131208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1361, 2722, 5444, 6805, 10888, 13610, 17693, 21776, 27220, 35386, 54440, 70772, 88465, 108880, 141544, 176930, 283088, 353860, 707720, 1415440]

約数ペア:

[(1, 1415440), (2, 707720), (4, 353860), (5, 283088), (8, 176930), (10, 141544), (13, 108880), (16, 88465), (20, 70772), (26, 54440), (40, 35386), (52, 27220), (65, 21776), (80, 17693), (104, 13610), (130, 10888), (208, 6805), (260, 5444), (520, 2722), (1040, 1361)]