291215620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{2711}}^1$

素因数の和:2892

約数の個数: 48

約数和(自身を含む): 631483776

約数和(自身を除く): 340268156

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 131, 164, 205, 262, 410, 524, 655, 820, 1310, 2620, 2711, 5371, 5422, 10742, 10844, 13555, 21484, 26855, 27110, 53710, 54220, 107420, 111151, 222302, 355141, 444604, 555755, 710282, 1111510, 1420564, 1775705, 2223020, 3551410, 7102820, 14560781, 29121562, 58243124, 72803905, 145607810, 291215620]

約数ペア:

[(1, 291215620), (2, 145607810), (4, 72803905), (5, 58243124), (10, 29121562), (20, 14560781), (41, 7102820), (82, 3551410), (131, 2223020), (164, 1775705), (205, 1420564), (262, 1111510), (410, 710282), (524, 555755), (655, 444604), (820, 355141), (1310, 222302), (2620, 111151), (2711, 107420), (5371, 54220), (5422, 53710), (10742, 27110), (10844, 26855), (13555, 21484)]