18951640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4691}}^1$

素因数の和:4803

約数の個数: 32

約数和(自身を含む): 43072560

約数和(自身を除く): 24120920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4691, 9382, 18764, 23455, 37528, 46910, 93820, 187640, 473791, 947582, 1895164, 2368955, 3790328, 4737910, 9475820, 18951640]

約数ペア:

[(1, 18951640), (2, 9475820), (4, 4737910), (5, 3790328), (8, 2368955), (10, 1895164), (20, 947582), (40, 473791), (101, 187640), (202, 93820), (404, 46910), (505, 37528), (808, 23455), (1010, 18764), (2020, 9382), (4040, 4691)]