51897420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{719}}^1$

素因数の和:1135

約数の個数: 72

約数和(自身を含む): 158034240

約数和(自身を除く): 106136820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 401, 719, 802, 1203, 1438, 1604, 2005, 2157, 2406, 2876, 3595, 3609, 4010, 4314, 4812, 6015, 6471, 7190, 7218, 8020, 8628, 10785, 12030, 12942, 14380, 14436, 18045, 21570, 24060, 25884, 32355, 36090, 43140, 64710, 72180, 129420, 288319, 576638, 864957, 1153276, 1441595, 1729914, 2594871, 2883190, 3459828, 4324785, 5189742, 5766380, 8649570, 10379484, 12974355, 17299140, 25948710, 51897420]

約数ペア:

[(1, 51897420), (2, 25948710), (3, 17299140), (4, 12974355), (5, 10379484), (6, 8649570), (9, 5766380), (10, 5189742), (12, 4324785), (15, 3459828), (18, 2883190), (20, 2594871), (30, 1729914), (36, 1441595), (45, 1153276), (60, 864957), (90, 576638), (180, 288319), (401, 129420), (719, 72180), (802, 64710), (1203, 43140), (1438, 36090), (1604, 32355), (2005, 25884), (2157, 24060), (2406, 21570), (2876, 18045), (3595, 14436), (3609, 14380), (4010, 12942), (4314, 12030), (4812, 10785), (6015, 8628), (6471, 8020), (7190, 7218)]