84815560

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2621}}^1$

素因数の和:3441

約数の個数: 32

約数和(自身を含む): 191143800

約数和(自身を除く): 106328240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 2621, 3236, 4045, 5242, 6472, 8090, 10484, 13105, 16180, 20968, 26210, 32360, 52420, 104840, 2120389, 4240778, 8481556, 10601945, 16963112, 21203890, 42407780, 84815560]

約数ペア:

[(1, 84815560), (2, 42407780), (4, 21203890), (5, 16963112), (8, 10601945), (10, 8481556), (20, 4240778), (40, 2120389), (809, 104840), (1618, 52420), (2621, 32360), (3236, 26210), (4045, 20968), (5242, 16180), (6472, 13105), (8090, 10484)]