20080260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{397}}^1$

素因数の和:693

約数の個数: 72

約数和(自身を含む): 61280856

約数和(自身を除く): 41200596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 397, 562, 794, 843, 1124, 1191, 1405, 1588, 1686, 1985, 2382, 2529, 2810, 3372, 3573, 3970, 4215, 4764, 5058, 5620, 5955, 7146, 7940, 8430, 10116, 11910, 12645, 14292, 16860, 17865, 23820, 25290, 35730, 50580, 71460, 111557, 223114, 334671, 446228, 557785, 669342, 1004013, 1115570, 1338684, 1673355, 2008026, 2231140, 3346710, 4016052, 5020065, 6693420, 10040130, 20080260]

約数ペア:

[(1, 20080260), (2, 10040130), (3, 6693420), (4, 5020065), (5, 4016052), (6, 3346710), (9, 2231140), (10, 2008026), (12, 1673355), (15, 1338684), (18, 1115570), (20, 1004013), (30, 669342), (36, 557785), (45, 446228), (60, 334671), (90, 223114), (180, 111557), (281, 71460), (397, 50580), (562, 35730), (794, 25290), (843, 23820), (1124, 17865), (1191, 16860), (1405, 14292), (1588, 12645), (1686, 11910), (1985, 10116), (2382, 8430), (2529, 7940), (2810, 7146), (3372, 5955), (3573, 5620), (3970, 5058), (4215, 4764)]