213477640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{997}}^1$

素因数の和:1162

約数の個数: 64

約数和(自身を含む): 494728560

約数和(自身を除く): 281250920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 101, 106, 202, 212, 265, 404, 424, 505, 530, 808, 997, 1010, 1060, 1994, 2020, 2120, 3988, 4040, 4985, 5353, 7976, 9970, 10706, 19940, 21412, 26765, 39880, 42824, 52841, 53530, 100697, 105682, 107060, 201394, 211364, 214120, 264205, 402788, 422728, 503485, 528410, 805576, 1006970, 1056820, 2013940, 2113640, 4027880, 5336941, 10673882, 21347764, 26684705, 42695528, 53369410, 106738820, 213477640]

約数ペア:

[(1, 213477640), (2, 106738820), (4, 53369410), (5, 42695528), (8, 26684705), (10, 21347764), (20, 10673882), (40, 5336941), (53, 4027880), (101, 2113640), (106, 2013940), (202, 1056820), (212, 1006970), (265, 805576), (404, 528410), (424, 503485), (505, 422728), (530, 402788), (808, 264205), (997, 214120), (1010, 211364), (1060, 201394), (1994, 107060), (2020, 105682), (2120, 100697), (3988, 53530), (4040, 52841), (4985, 42824), (5353, 39880), (7976, 26765), (9970, 21412), (10706, 19940)]