40421780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1613}}^1$

素因数の和:1808

約数の個数: 48

約数和(自身を含む): 97614720

約数和(自身を除く): 57192940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 895, 1253, 1613, 1790, 2506, 3226, 3580, 5012, 6265, 6452, 8065, 11291, 12530, 16130, 22582, 25060, 32260, 45164, 56455, 112910, 225820, 288727, 577454, 1154908, 1443635, 2021089, 2887270, 4042178, 5774540, 8084356, 10105445, 20210890, 40421780]

約数ペア:

[(1, 40421780), (2, 20210890), (4, 10105445), (5, 8084356), (7, 5774540), (10, 4042178), (14, 2887270), (20, 2021089), (28, 1443635), (35, 1154908), (70, 577454), (140, 288727), (179, 225820), (358, 112910), (716, 56455), (895, 45164), (1253, 32260), (1613, 25060), (1790, 22582), (2506, 16130), (3226, 12530), (3580, 11291), (5012, 8065), (6265, 6452)]