28519940

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{241}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 61756464

約数和(自身を除く): 33236524

約数列:

[1, 2, 4, 5, 10, 20, 61, 97, 122, 194, 241, 244, 305, 388, 482, 485, 610, 964, 970, 1205, 1220, 1940, 2410, 4820, 5917, 11834, 14701, 23377, 23668, 29402, 29585, 46754, 58804, 59170, 73505, 93508, 116885, 118340, 147010, 233770, 294020, 467540, 1425997, 2851994, 5703988, 7129985, 14259970, 28519940]

約数ペア:

[(1, 28519940), (2, 14259970), (4, 7129985), (5, 5703988), (10, 2851994), (20, 1425997), (61, 467540), (97, 294020), (122, 233770), (194, 147010), (241, 118340), (244, 116885), (305, 93508), (388, 73505), (482, 59170), (485, 58804), (610, 46754), (964, 29585), (970, 29402), (1205, 23668), (1220, 23377), (1940, 14701), (2410, 11834), (4820, 5917)]