64801780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5501}}^1$

素因数の和:5560

約数の個数: 48

約数和(自身を含む): 147893760

約数和(自身を除く): 83091980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5501, 5890, 11002, 11780, 22004, 27505, 55010, 104519, 110020, 170531, 209038, 341062, 418076, 522595, 682124, 852655, 1045190, 1705310, 2090380, 3240089, 3410620, 6480178, 12960356, 16200445, 32400890, 64801780]

約数ペア:

[(1, 64801780), (2, 32400890), (4, 16200445), (5, 12960356), (10, 6480178), (19, 3410620), (20, 3240089), (31, 2090380), (38, 1705310), (62, 1045190), (76, 852655), (95, 682124), (124, 522595), (155, 418076), (190, 341062), (310, 209038), (380, 170531), (589, 110020), (620, 104519), (1178, 55010), (2356, 27505), (2945, 22004), (5501, 11780), (5890, 11002)]