20734680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1319}}^1$

素因数の和:1464

約数の個数: 64

約数和(自身を含む): 62726400

約数和(自身を除く): 41991720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1319, 1572, 1965, 2620, 2638, 3144, 3930, 3957, 5240, 5276, 6595, 7860, 7914, 10552, 13190, 15720, 15828, 19785, 26380, 31656, 39570, 52760, 79140, 158280, 172789, 345578, 518367, 691156, 863945, 1036734, 1382312, 1727890, 2073468, 2591835, 3455780, 4146936, 5183670, 6911560, 10367340, 20734680]

約数ペア:

[(1, 20734680), (2, 10367340), (3, 6911560), (4, 5183670), (5, 4146936), (6, 3455780), (8, 2591835), (10, 2073468), (12, 1727890), (15, 1382312), (20, 1036734), (24, 863945), (30, 691156), (40, 518367), (60, 345578), (120, 172789), (131, 158280), (262, 79140), (393, 52760), (524, 39570), (655, 31656), (786, 26380), (1048, 19785), (1310, 15828), (1319, 15720), (1572, 13190), (1965, 10552), (2620, 7914), (2638, 7860), (3144, 6595), (3930, 5276), (3957, 5240)]