81822640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32993}}^1$

素因数の和:33037

約数の個数: 40

約数和(自身を含む): 196380288

約数和(自身を除く): 114557648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 32993, 65986, 131972, 164965, 263944, 329930, 527888, 659860, 1022783, 1319720, 2045566, 2639440, 4091132, 5113915, 8182264, 10227830, 16364528, 20455660, 40911320, 81822640]

約数ペア:

[(1, 81822640), (2, 40911320), (4, 20455660), (5, 16364528), (8, 10227830), (10, 8182264), (16, 5113915), (20, 4091132), (31, 2639440), (40, 2045566), (62, 1319720), (80, 1022783), (124, 659860), (155, 527888), (248, 329930), (310, 263944), (496, 164965), (620, 131972), (1240, 65986), (2480, 32993)]