259486540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{4457}}^1$

素因数の和:4578

約数の個数: 48

約数和(自身を含む): 566201664

約数和(自身を除く): 306715124

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 164, 205, 284, 355, 410, 710, 820, 1420, 2911, 4457, 5822, 8914, 11644, 14555, 17828, 22285, 29110, 44570, 58220, 89140, 182737, 316447, 365474, 632894, 730948, 913685, 1265788, 1582235, 1827370, 3164470, 3654740, 6328940, 12974327, 25948654, 51897308, 64871635, 129743270, 259486540]

約数ペア:

[(1, 259486540), (2, 129743270), (4, 64871635), (5, 51897308), (10, 25948654), (20, 12974327), (41, 6328940), (71, 3654740), (82, 3164470), (142, 1827370), (164, 1582235), (205, 1265788), (284, 913685), (355, 730948), (410, 632894), (710, 365474), (820, 316447), (1420, 182737), (2911, 89140), (4457, 58220), (5822, 44570), (8914, 29110), (11644, 22285), (14555, 17828)]