76871960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:321

約数の個数: 128

約数和(自身を含む): 205286400

約数和(自身を除く): 128414440

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 43, 44, 55, 68, 85, 86, 88, 110, 136, 170, 172, 187, 215, 220, 239, 340, 344, 374, 430, 440, 473, 478, 680, 731, 748, 860, 935, 946, 956, 1195, 1462, 1496, 1720, 1870, 1892, 1912, 2365, 2390, 2629, 2924, 3655, 3740, 3784, 4063, 4730, 4780, 5258, 5848, 7310, 7480, 8041, 8126, 9460, 9560, 10277, 10516, 13145, 14620, 16082, 16252, 18920, 20315, 20554, 21032, 26290, 29240, 32164, 32504, 40205, 40630, 41108, 44693, 51385, 52580, 64328, 80410, 81260, 82216, 89386, 102770, 105160, 113047, 160820, 162520, 174709, 178772, 205540, 223465, 226094, 321640, 349418, 357544, 411080, 446930, 452188, 565235, 698836, 873545, 893860, 904376, 1130470, 1397672, 1747090, 1787720, 1921799, 2260940, 3494180, 3843598, 4521880, 6988360, 7687196, 9608995, 15374392, 19217990, 38435980, 76871960]

約数ペア:

[(1, 76871960), (2, 38435980), (4, 19217990), (5, 15374392), (8, 9608995), (10, 7687196), (11, 6988360), (17, 4521880), (20, 3843598), (22, 3494180), (34, 2260940), (40, 1921799), (43, 1787720), (44, 1747090), (55, 1397672), (68, 1130470), (85, 904376), (86, 893860), (88, 873545), (110, 698836), (136, 565235), (170, 452188), (172, 446930), (187, 411080), (215, 357544), (220, 349418), (239, 321640), (340, 226094), (344, 223465), (374, 205540), (430, 178772), (440, 174709), (473, 162520), (478, 160820), (680, 113047), (731, 105160), (748, 102770), (860, 89386), (935, 82216), (946, 81260), (956, 80410), (1195, 64328), (1462, 52580), (1496, 51385), (1720, 44693), (1870, 41108), (1892, 40630), (1912, 40205), (2365, 32504), (2390, 32164), (2629, 29240), (2924, 26290), (3655, 21032), (3740, 20554), (3784, 20315), (4063, 18920), (4730, 16252), (4780, 16082), (5258, 14620), (5848, 13145), (7310, 10516), (7480, 10277), (8041, 9560), (8126, 9460)]