72960920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{197}}^2$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 168510240

約数和(自身を除く): 95549320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 197, 235, 376, 394, 470, 788, 940, 985, 1576, 1880, 1970, 3940, 7880, 9259, 18518, 37036, 38809, 46295, 74072, 77618, 92590, 155236, 185180, 194045, 310472, 370360, 388090, 776180, 1552360, 1824023, 3648046, 7296092, 9120115, 14592184, 18240230, 36480460, 72960920]

約数ペア:

[(1, 72960920), (2, 36480460), (4, 18240230), (5, 14592184), (8, 9120115), (10, 7296092), (20, 3648046), (40, 1824023), (47, 1552360), (94, 776180), (188, 388090), (197, 370360), (235, 310472), (376, 194045), (394, 185180), (470, 155236), (788, 92590), (940, 77618), (985, 74072), (1576, 46295), (1880, 38809), (1970, 37036), (3940, 18518), (7880, 9259)]