20785987585

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{151717}}^1$

素因数の和:151833

約数の個数: 32

約数和(自身を含む): 28314220032

約数和(自身を除く): 7528232447

約数列:

[1, 5, 11, 47, 53, 55, 235, 265, 517, 583, 2491, 2585, 2915, 12455, 27401, 137005, 151717, 758585, 1668887, 7130699, 8041001, 8344435, 35653495, 40205005, 78437689, 88451011, 377927047, 392188445, 442255055, 1889635235, 4157197517, 20785987585]

約数ペア:

[(1, 20785987585), (5, 4157197517), (11, 1889635235), (47, 442255055), (53, 392188445), (55, 377927047), (235, 88451011), (265, 78437689), (517, 40205005), (583, 35653495), (2491, 8344435), (2585, 8041001), (2915, 7130699), (12455, 1668887), (27401, 758585), (137005, 151717)]