89965720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5581}}^1$

素因数の和:5636

約数の個数: 64

約数和(自身を含む): 225066240

約数和(自身を除く): 135100520

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, 5581, 8060, 11162, 16120, 22324, 27905, 44648, 55810, 72553, 111620, 145106, 173011, 223240, 290212, 346022, 362765, 580424, 692044, 725530, 865055, 1384088, 1451060, 1730110, 2249143, 2902120, 3460220, 4498286, 6920440, 8996572, 11245715, 17993144, 22491430, 44982860, 89965720]

約数ペア:

[(1, 89965720), (2, 44982860), (4, 22491430), (5, 17993144), (8, 11245715), (10, 8996572), (13, 6920440), (20, 4498286), (26, 3460220), (31, 2902120), (40, 2249143), (52, 1730110), (62, 1451060), (65, 1384088), (104, 865055), (124, 725530), (130, 692044), (155, 580424), (248, 362765), (260, 346022), (310, 290212), (403, 223240), (520, 173011), (620, 145106), (806, 111620), (1240, 72553), (1612, 55810), (2015, 44648), (3224, 27905), (4030, 22324), (5581, 16120), (8060, 11162)]