20420460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2767}}^1$

素因数の和:2823

約数の個数: 72

約数和(自身を含む): 63475776

約数和(自身を除く): 43055316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2767, 3690, 5534, 7380, 8301, 11068, 13835, 16602, 24903, 27670, 33204, 41505, 49806, 55340, 83010, 99612, 113447, 124515, 166020, 226894, 249030, 340341, 453788, 498060, 567235, 680682, 1021023, 1134470, 1361364, 1701705, 2042046, 2268940, 3403410, 4084092, 5105115, 6806820, 10210230, 20420460]

約数ペア:

[(1, 20420460), (2, 10210230), (3, 6806820), (4, 5105115), (5, 4084092), (6, 3403410), (9, 2268940), (10, 2042046), (12, 1701705), (15, 1361364), (18, 1134470), (20, 1021023), (30, 680682), (36, 567235), (41, 498060), (45, 453788), (60, 340341), (82, 249030), (90, 226894), (123, 166020), (164, 124515), (180, 113447), (205, 99612), (246, 83010), (369, 55340), (410, 49806), (492, 41505), (615, 33204), (738, 27670), (820, 24903), (1230, 16602), (1476, 13835), (1845, 11068), (2460, 8301), (2767, 7380), (3690, 5534)]