2654840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2141}}^1$

素因数の和:2183

約数の個数: 32

約数和(自身を含む): 6168960

約数和(自身を除く): 3514120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 2141, 4282, 8564, 10705, 17128, 21410, 42820, 66371, 85640, 132742, 265484, 331855, 530968, 663710, 1327420, 2654840]

約数ペア:

[(1, 2654840), (2, 1327420), (4, 663710), (5, 530968), (8, 331855), (10, 265484), (20, 132742), (31, 85640), (40, 66371), (62, 42820), (124, 21410), (155, 17128), (248, 10705), (310, 8564), (620, 4282), (1240, 2141)]