289577980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{2447}}^1$

素因数の和:2614

約数の個数: 48

約数和(自身を含む): 624710016

約数和(自身を除く): 335132036

約数列:

[1, 2, 4, 5, 10, 20, 61, 97, 122, 194, 244, 305, 388, 485, 610, 970, 1220, 1940, 2447, 4894, 5917, 9788, 11834, 12235, 23668, 24470, 29585, 48940, 59170, 118340, 149267, 237359, 298534, 474718, 597068, 746335, 949436, 1186795, 1492670, 2373590, 2985340, 4747180, 14478899, 28957798, 57915596, 72394495, 144788990, 289577980]

約数ペア:

[(1, 289577980), (2, 144788990), (4, 72394495), (5, 57915596), (10, 28957798), (20, 14478899), (61, 4747180), (97, 2985340), (122, 2373590), (194, 1492670), (244, 1186795), (305, 949436), (388, 746335), (485, 597068), (610, 474718), (970, 298534), (1220, 237359), (1940, 149267), (2447, 118340), (4894, 59170), (5917, 48940), (9788, 29585), (11834, 24470), (12235, 23668)]