81251880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3209}}^1$

素因数の和:3434

約数の個数: 64

約数和(自身を含む): 244987200

約数和(自身を除く): 163735320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 211, 422, 633, 844, 1055, 1266, 1688, 2110, 2532, 3165, 3209, 4220, 5064, 6330, 6418, 8440, 9627, 12660, 12836, 16045, 19254, 25320, 25672, 32090, 38508, 48135, 64180, 77016, 96270, 128360, 192540, 385080, 677099, 1354198, 2031297, 2708396, 3385495, 4062594, 5416792, 6770990, 8125188, 10156485, 13541980, 16250376, 20312970, 27083960, 40625940, 81251880]

約数ペア:

[(1, 81251880), (2, 40625940), (3, 27083960), (4, 20312970), (5, 16250376), (6, 13541980), (8, 10156485), (10, 8125188), (12, 6770990), (15, 5416792), (20, 4062594), (24, 3385495), (30, 2708396), (40, 2031297), (60, 1354198), (120, 677099), (211, 385080), (422, 192540), (633, 128360), (844, 96270), (1055, 77016), (1266, 64180), (1688, 48135), (2110, 38508), (2532, 32090), (3165, 25672), (3209, 25320), (4220, 19254), (5064, 16045), (6330, 12836), (6418, 12660), (8440, 9627)]