287442940

素因数分解:

$2^2\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{11047}}^1$

素因数の和:12357

約数の個数: 24

約数和(自身を含む): 604148832

約数和(自身を除く): 316705892

約数列:

[1, 2, 4, 5, 10, 20, 1301, 2602, 5204, 6505, 11047, 13010, 22094, 26020, 44188, 55235, 110470, 220940, 14372147, 28744294, 57488588, 71860735, 143721470, 287442940]

約数ペア:

[(1, 287442940), (2, 143721470), (4, 71860735), (5, 57488588), (10, 28744294), (20, 14372147), (1301, 220940), (2602, 110470), (5204, 55235), (6505, 44188), (11047, 26020), (13010, 22094)]