19483940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4799}}^1$

素因数の和:4844

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 28900060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4799, 9598, 19196, 23995, 33593, 47990, 67186, 95980, 134372, 139171, 167965, 278342, 335930, 556684, 671860, 695855, 974197, 1391710, 1948394, 2783420, 3896788, 4870985, 9741970, 19483940]

約数ペア:

[(1, 19483940), (2, 9741970), (4, 4870985), (5, 3896788), (7, 2783420), (10, 1948394), (14, 1391710), (20, 974197), (28, 695855), (29, 671860), (35, 556684), (58, 335930), (70, 278342), (116, 167965), (140, 139171), (145, 134372), (203, 95980), (290, 67186), (406, 47990), (580, 33593), (812, 23995), (1015, 19196), (2030, 9598), (4060, 4799)]