128823910

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{2789}}^1$

素因数の和:2976

約数の個数: 32

約数和(自身を含む): 241056000

約数和(自身を除く): 112232090

約数列:

[1, 2, 5, 10, 31, 62, 149, 155, 298, 310, 745, 1490, 2789, 4619, 5578, 9238, 13945, 23095, 27890, 46190, 86459, 172918, 415561, 432295, 831122, 864590, 2077805, 4155610, 12882391, 25764782, 64411955, 128823910]

約数ペア:

[(1, 128823910), (2, 64411955), (5, 25764782), (10, 12882391), (31, 4155610), (62, 2077805), (149, 864590), (155, 831122), (298, 432295), (310, 415561), (745, 172918), (1490, 86459), (2789, 46190), (4619, 27890), (5578, 23095), (9238, 13945)]