85129720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5281}}^1$

素因数の和:5336

約数の個数: 64

約数和(自身を含む): 212970240

約数和(自身を除く): 127840520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 5281, 8060, 10562, 16120, 21124, 26405, 42248, 52810, 68653, 105620, 137306, 163711, 211240, 274612, 327422, 343265, 549224, 654844, 686530, 818555, 1309688, 1373060, 1637110, 2128243, 2746120, 3274220, 4256486, 6548440, 8512972, 10641215, 17025944, 21282430, 42564860, 85129720]

約数ペア:

[(1, 85129720), (2, 42564860), (4, 21282430), (5, 17025944), (8, 10641215), (10, 8512972), (13, 6548440), (20, 4256486), (26, 3274220), (31, 2746120), (40, 2128243), (52, 1637110), (62, 1373060), (65, 1309688), (104, 818555), (124, 686530), (130, 654844), (155, 549224), (248, 343265), (260, 327422), (310, 274612), (403, 211240), (520, 163711), (620, 137306), (806, 105620), (1240, 68653), (1612, 52810), (2015, 42248), (3224, 26405), (4030, 21124), (5281, 16120), (8060, 10562)]