78066820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{15803}}^1$

素因数の和:15844

約数の個数: 48

約数和(自身を含む): 185855040

約数和(自身を除く): 107788220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 15803, 31606, 63212, 79015, 158030, 205439, 300257, 316060, 410878, 600514, 821756, 1027195, 1201028, 1501285, 2054390, 3002570, 3903341, 4108780, 6005140, 7806682, 15613364, 19516705, 39033410, 78066820]

約数ペア:

[(1, 78066820), (2, 39033410), (4, 19516705), (5, 15613364), (10, 7806682), (13, 6005140), (19, 4108780), (20, 3903341), (26, 3002570), (38, 2054390), (52, 1501285), (65, 1201028), (76, 1027195), (95, 821756), (130, 600514), (190, 410878), (247, 316060), (260, 300257), (380, 205439), (494, 158030), (988, 79015), (1235, 63212), (2470, 31606), (4940, 15803)]