1561420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{587}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 3951360

約数和(自身を除く): 2389940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 587, 665, 1174, 1330, 2348, 2660, 2935, 4109, 5870, 8218, 11153, 11740, 16436, 20545, 22306, 41090, 44612, 55765, 78071, 82180, 111530, 156142, 223060, 312284, 390355, 780710, 1561420]

約数ペア:

[(1, 1561420), (2, 780710), (4, 390355), (5, 312284), (7, 223060), (10, 156142), (14, 111530), (19, 82180), (20, 78071), (28, 55765), (35, 44612), (38, 41090), (70, 22306), (76, 20545), (95, 16436), (133, 11740), (140, 11153), (190, 8218), (266, 5870), (380, 4109), (532, 2935), (587, 2660), (665, 2348), (1174, 1330)]