15172020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2719}}^1$

素因数の和:2765

約数の個数: 72

約数和(自身を含む): 47523840

約数和(自身を除く): 32351820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2719, 2790, 5438, 5580, 8157, 10876, 13595, 16314, 24471, 27190, 32628, 40785, 48942, 54380, 81570, 84289, 97884, 122355, 163140, 168578, 244710, 252867, 337156, 421445, 489420, 505734, 758601, 842890, 1011468, 1264335, 1517202, 1685780, 2528670, 3034404, 3793005, 5057340, 7586010, 15172020]

約数ペア:

[(1, 15172020), (2, 7586010), (3, 5057340), (4, 3793005), (5, 3034404), (6, 2528670), (9, 1685780), (10, 1517202), (12, 1264335), (15, 1011468), (18, 842890), (20, 758601), (30, 505734), (31, 489420), (36, 421445), (45, 337156), (60, 252867), (62, 244710), (90, 168578), (93, 163140), (124, 122355), (155, 97884), (180, 84289), (186, 81570), (279, 54380), (310, 48942), (372, 40785), (465, 32628), (558, 27190), (620, 24471), (930, 16314), (1116, 13595), (1395, 10876), (1860, 8157), (2719, 5580), (2790, 5438)]