81701930

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1973}}^1$

素因数の和:2122

約数の個数: 32

約数和(自身を含む): 152219088

約数和(自身を除く): 70517158

約数列:

[1, 2, 5, 10, 41, 82, 101, 202, 205, 410, 505, 1010, 1973, 3946, 4141, 8282, 9865, 19730, 20705, 41410, 80893, 161786, 199273, 398546, 404465, 808930, 996365, 1992730, 8170193, 16340386, 40850965, 81701930]

約数ペア:

[(1, 81701930), (2, 40850965), (5, 16340386), (10, 8170193), (41, 1992730), (82, 996365), (101, 808930), (202, 404465), (205, 398546), (410, 199273), (505, 161786), (1010, 80893), (1973, 41410), (3946, 20705), (4141, 19730), (8282, 9865)]