71666920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{487}}^1$

素因数の和:794

約数の個数: 64

約数和(自身を含む): 174625920

約数和(自身を除く): 102959000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 283, 487, 520, 566, 974, 1132, 1415, 1948, 2264, 2435, 2830, 3679, 3896, 4870, 5660, 6331, 7358, 9740, 11320, 12662, 14716, 18395, 19480, 25324, 29432, 31655, 36790, 50648, 63310, 73580, 126620, 137821, 147160, 253240, 275642, 551284, 689105, 1102568, 1378210, 1791673, 2756420, 3583346, 5512840, 7166692, 8958365, 14333384, 17916730, 35833460, 71666920]

約数ペア:

[(1, 71666920), (2, 35833460), (4, 17916730), (5, 14333384), (8, 8958365), (10, 7166692), (13, 5512840), (20, 3583346), (26, 2756420), (40, 1791673), (52, 1378210), (65, 1102568), (104, 689105), (130, 551284), (260, 275642), (283, 253240), (487, 147160), (520, 137821), (566, 126620), (974, 73580), (1132, 63310), (1415, 50648), (1948, 36790), (2264, 31655), (2435, 29432), (2830, 25324), (3679, 19480), (3896, 18395), (4870, 14716), (5660, 12662), (6331, 11320), (7358, 9740)]