20804821460

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{983}}^1\times {\mathrm{4391}}^1$

素因数の和:5624

約数の個数: 48

約数和(自身を含む): 43926043392

約数和(自身を除く): 23121221932

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 983, 1205, 1966, 2410, 3932, 4391, 4820, 4915, 8782, 9830, 17564, 19660, 21955, 43910, 87820, 236903, 473806, 947612, 1058231, 1184515, 2116462, 2369030, 4232924, 4316353, 4738060, 5291155, 8632706, 10582310, 17265412, 21164620, 21581765, 43163530, 86327060, 1040241073, 2080482146, 4160964292, 5201205365, 10402410730, 20804821460]

約数ペア:

[(1, 20804821460), (2, 10402410730), (4, 5201205365), (5, 4160964292), (10, 2080482146), (20, 1040241073), (241, 86327060), (482, 43163530), (964, 21581765), (983, 21164620), (1205, 17265412), (1966, 10582310), (2410, 8632706), (3932, 5291155), (4391, 4738060), (4820, 4316353), (4915, 4232924), (8782, 2369030), (9830, 2116462), (17564, 1184515), (19660, 1058231), (21955, 947612), (43910, 473806), (87820, 236903)]