20247340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 47037312

約数和(自身を除く): 26789972

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 113, 124, 155, 170, 226, 289, 310, 340, 452, 527, 565, 578, 620, 1054, 1130, 1156, 1445, 1921, 2108, 2260, 2635, 2890, 3503, 3842, 5270, 5780, 7006, 7684, 8959, 9605, 10540, 14012, 17515, 17918, 19210, 32657, 35030, 35836, 38420, 44795, 59551, 65314, 70060, 89590, 119102, 130628, 163285, 179180, 238204, 297755, 326570, 595510, 653140, 1012367, 1191020, 2024734, 4049468, 5061835, 10123670, 20247340]

約数ペア:

[(1, 20247340), (2, 10123670), (4, 5061835), (5, 4049468), (10, 2024734), (17, 1191020), (20, 1012367), (31, 653140), (34, 595510), (62, 326570), (68, 297755), (85, 238204), (113, 179180), (124, 163285), (155, 130628), (170, 119102), (226, 89590), (289, 70060), (310, 65314), (340, 59551), (452, 44795), (527, 38420), (565, 35836), (578, 35030), (620, 32657), (1054, 19210), (1130, 17918), (1156, 17515), (1445, 14012), (1921, 10540), (2108, 9605), (2260, 8959), (2635, 7684), (2890, 7006), (3503, 5780), (3842, 5270)]