19029420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1489}}^1$

素因数の和:1575

約数の個数: 72

約数和(自身を含む): 58574880

約数和(自身を除く): 39545460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 1489, 2130, 2556, 2978, 3195, 4260, 4467, 5956, 6390, 7445, 8934, 12780, 13401, 14890, 17868, 22335, 26802, 29780, 44670, 53604, 67005, 89340, 105719, 134010, 211438, 268020, 317157, 422876, 528595, 634314, 951471, 1057190, 1268628, 1585785, 1902942, 2114380, 3171570, 3805884, 4757355, 6343140, 9514710, 19029420]

約数ペア:

[(1, 19029420), (2, 9514710), (3, 6343140), (4, 4757355), (5, 3805884), (6, 3171570), (9, 2114380), (10, 1902942), (12, 1585785), (15, 1268628), (18, 1057190), (20, 951471), (30, 634314), (36, 528595), (45, 422876), (60, 317157), (71, 268020), (90, 211438), (142, 134010), (180, 105719), (213, 89340), (284, 67005), (355, 53604), (426, 44670), (639, 29780), (710, 26802), (852, 22335), (1065, 17868), (1278, 14890), (1420, 13401), (1489, 12780), (2130, 8934), (2556, 7445), (2978, 6390), (3195, 5956), (4260, 4467)]