80312420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{1187}}^1$

素因数の和:1412

約数の個数: 48

約数和(自身を含む): 179625600

約数和(自身を除く): 99313180

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 398, 796, 995, 1187, 1990, 2374, 3383, 3980, 4748, 5935, 6766, 11870, 13532, 16915, 20179, 23740, 33830, 40358, 67660, 80716, 100895, 201790, 236213, 403580, 472426, 944852, 1181065, 2362130, 4015621, 4724260, 8031242, 16062484, 20078105, 40156210, 80312420]

約数ペア:

[(1, 80312420), (2, 40156210), (4, 20078105), (5, 16062484), (10, 8031242), (17, 4724260), (20, 4015621), (34, 2362130), (68, 1181065), (85, 944852), (170, 472426), (199, 403580), (340, 236213), (398, 201790), (796, 100895), (995, 80716), (1187, 67660), (1990, 40358), (2374, 33830), (3383, 23740), (3980, 20179), (4748, 16915), (5935, 13532), (6766, 11870)]