78769820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2137}}^1$

素因数の和:2262

約数の個数: 48

約数和(自身を含む): 176000160

約数和(自身を除く): 97230340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 970, 1843, 1940, 2137, 3686, 4274, 7372, 8548, 9215, 10685, 18430, 21370, 36860, 40603, 42740, 81206, 162412, 203015, 207289, 406030, 414578, 812060, 829156, 1036445, 2072890, 3938491, 4145780, 7876982, 15753964, 19692455, 39384910, 78769820]

約数ペア:

[(1, 78769820), (2, 39384910), (4, 19692455), (5, 15753964), (10, 7876982), (19, 4145780), (20, 3938491), (38, 2072890), (76, 1036445), (95, 829156), (97, 812060), (190, 414578), (194, 406030), (380, 207289), (388, 203015), (485, 162412), (970, 81206), (1843, 42740), (1940, 40603), (2137, 36860), (3686, 21370), (4274, 18430), (7372, 10685), (8548, 9215)]