26978580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2111}}^1$

素因数の和:2197

約数の個数: 72

約数和(自身を含む): 83026944

約数和(自身を除く): 56048364

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, 2111, 2130, 2556, 3195, 4222, 4260, 6333, 6390, 8444, 10555, 12666, 12780, 18999, 21110, 25332, 31665, 37998, 42220, 63330, 75996, 94995, 126660, 149881, 189990, 299762, 379980, 449643, 599524, 749405, 899286, 1348929, 1498810, 1798572, 2248215, 2697858, 2997620, 4496430, 5395716, 6744645, 8992860, 13489290, 26978580]

約数ペア:

[(1, 26978580), (2, 13489290), (3, 8992860), (4, 6744645), (5, 5395716), (6, 4496430), (9, 2997620), (10, 2697858), (12, 2248215), (15, 1798572), (18, 1498810), (20, 1348929), (30, 899286), (36, 749405), (45, 599524), (60, 449643), (71, 379980), (90, 299762), (142, 189990), (180, 149881), (213, 126660), (284, 94995), (355, 75996), (426, 63330), (639, 42220), (710, 37998), (852, 31665), (1065, 25332), (1278, 21110), (1420, 18999), (2111, 12780), (2130, 12666), (2556, 10555), (3195, 8444), (4222, 6390), (4260, 6333)]