12920535

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 23587200

約数和(自身を除く): 10666665

約数列:

[1, 3, 5, 9, 15, 41, 45, 47, 123, 141, 149, 205, 235, 369, 423, 447, 615, 705, 745, 1341, 1845, 1927, 2115, 2235, 5781, 6109, 6705, 7003, 9635, 17343, 18327, 21009, 28905, 30545, 35015, 54981, 63027, 86715, 91635, 105045, 274905, 287123, 315135, 861369, 1435615, 2584107, 4306845, 12920535]

約数ペア:

[(1, 12920535), (3, 4306845), (5, 2584107), (9, 1435615), (15, 861369), (41, 315135), (45, 287123), (47, 274905), (123, 105045), (141, 91635), (149, 86715), (205, 63027), (235, 54981), (369, 35015), (423, 30545), (447, 28905), (615, 21009), (705, 18327), (745, 17343), (1341, 9635), (1845, 7003), (1927, 6705), (2115, 6109), (2235, 5781)]