78214960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^3\times {\mathrm{199}}^1$

素因数の和:263

約数の個数: 80

約数和(自身を含む): 194184000

約数和(自身を除く): 115969040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 199, 272, 289, 340, 398, 578, 680, 796, 995, 1156, 1360, 1445, 1592, 1990, 2312, 2890, 3184, 3383, 3980, 4624, 4913, 5780, 6766, 7960, 9826, 11560, 13532, 15920, 16915, 19652, 23120, 24565, 27064, 33830, 39304, 49130, 54128, 57511, 67660, 78608, 98260, 115022, 135320, 196520, 230044, 270640, 287555, 393040, 460088, 575110, 920176, 977687, 1150220, 1955374, 2300440, 3910748, 4600880, 4888435, 7821496, 9776870, 15642992, 19553740, 39107480, 78214960]

約数ペア:

[(1, 78214960), (2, 39107480), (4, 19553740), (5, 15642992), (8, 9776870), (10, 7821496), (16, 4888435), (17, 4600880), (20, 3910748), (34, 2300440), (40, 1955374), (68, 1150220), (80, 977687), (85, 920176), (136, 575110), (170, 460088), (199, 393040), (272, 287555), (289, 270640), (340, 230044), (398, 196520), (578, 135320), (680, 115022), (796, 98260), (995, 78608), (1156, 67660), (1360, 57511), (1445, 54128), (1592, 49130), (1990, 39304), (2312, 33830), (2890, 27064), (3184, 24565), (3383, 23120), (3980, 19652), (4624, 16915), (4913, 15920), (5780, 13532), (6766, 11560), (7960, 9826)]