2405240

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 5460480

約数和(自身を除く): 3055240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 383, 628, 766, 785, 1256, 1532, 1570, 1915, 3064, 3140, 3830, 6280, 7660, 15320, 60131, 120262, 240524, 300655, 481048, 601310, 1202620, 2405240]

約数ペア:

[(1, 2405240), (2, 1202620), (4, 601310), (5, 481048), (8, 300655), (10, 240524), (20, 120262), (40, 60131), (157, 15320), (314, 7660), (383, 6280), (628, 3830), (766, 3140), (785, 3064), (1256, 1915), (1532, 1570)]