78905138

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{757}}^1$

素因数の和:1002

約数の個数: 32

約数和(自身を含む): 134984640

約数和(自身を除く): 56079502

約数列:

[1, 2, 13, 19, 26, 38, 211, 247, 422, 494, 757, 1514, 2743, 4009, 5486, 8018, 9841, 14383, 19682, 28766, 52117, 104234, 159727, 186979, 319454, 373958, 2076451, 3034813, 4152902, 6069626, 39452569, 78905138]

約数ペア:

[(1, 78905138), (2, 39452569), (13, 6069626), (19, 4152902), (26, 3034813), (38, 2076451), (211, 373958), (247, 319454), (422, 186979), (494, 159727), (757, 104234), (1514, 52117), (2743, 28766), (4009, 19682), (5486, 14383), (8018, 9841)]