20217963340

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1039}}^1\times {\mathrm{2129}}^1$

素因数の和:3634

約数の個数: 48

約数和(自身を含む): 42611587200

約数和(自身を除く): 22393623860

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1039, 1828, 2078, 2129, 2285, 4156, 4258, 4570, 5195, 8516, 9140, 10390, 10645, 20780, 21290, 42580, 474823, 949646, 972953, 1899292, 1945906, 2212031, 2374115, 3891812, 4424062, 4748230, 4864765, 8848124, 9496460, 9729530, 11060155, 19459060, 22120310, 44240620, 1010898167, 2021796334, 4043592668, 5054490835, 10108981670, 20217963340]

約数ペア:

[(1, 20217963340), (2, 10108981670), (4, 5054490835), (5, 4043592668), (10, 2021796334), (20, 1010898167), (457, 44240620), (914, 22120310), (1039, 19459060), (1828, 11060155), (2078, 9729530), (2129, 9496460), (2285, 8848124), (4156, 4864765), (4258, 4748230), (4570, 4424062), (5195, 3891812), (8516, 2374115), (9140, 2212031), (10390, 1945906), (10645, 1899292), (20780, 972953), (21290, 949646), (42580, 474823)]