9931880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 25920000

約数和(自身を除く): 15988120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 449, 553, 632, 790, 898, 1106, 1580, 1796, 2212, 2245, 2765, 3143, 3160, 3592, 4424, 4490, 5530, 6286, 8980, 11060, 12572, 15715, 17960, 22120, 25144, 31430, 35471, 62860, 70942, 125720, 141884, 177355, 248297, 283768, 354710, 496594, 709420, 993188, 1241485, 1418840, 1986376, 2482970, 4965940, 9931880]

約数ペア:

[(1, 9931880), (2, 4965940), (4, 2482970), (5, 1986376), (7, 1418840), (8, 1241485), (10, 993188), (14, 709420), (20, 496594), (28, 354710), (35, 283768), (40, 248297), (56, 177355), (70, 141884), (79, 125720), (140, 70942), (158, 62860), (280, 35471), (316, 31430), (395, 25144), (449, 22120), (553, 17960), (632, 15715), (790, 12572), (898, 11060), (1106, 8980), (1580, 6286), (1796, 5530), (2212, 4490), (2245, 4424), (2765, 3592), (3143, 3160)]