172727560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1\times {\mathrm{431}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 400308480

約数和(自身を除く): 227580920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 233, 344, 430, 431, 466, 860, 862, 932, 1165, 1720, 1724, 1864, 2155, 2330, 3448, 4310, 4660, 8620, 9320, 10019, 17240, 18533, 20038, 37066, 40076, 50095, 74132, 80152, 92665, 100190, 100423, 148264, 185330, 200380, 200846, 370660, 400760, 401692, 502115, 741320, 803384, 1004230, 2008460, 4016920, 4318189, 8636378, 17272756, 21590945, 34545512, 43181890, 86363780, 172727560]

約数ペア:

[(1, 172727560), (2, 86363780), (4, 43181890), (5, 34545512), (8, 21590945), (10, 17272756), (20, 8636378), (40, 4318189), (43, 4016920), (86, 2008460), (172, 1004230), (215, 803384), (233, 741320), (344, 502115), (430, 401692), (431, 400760), (466, 370660), (860, 200846), (862, 200380), (932, 185330), (1165, 148264), (1720, 100423), (1724, 100190), (1864, 92665), (2155, 80152), (2330, 74132), (3448, 50095), (4310, 40076), (4660, 37066), (8620, 20038), (9320, 18533), (10019, 17240)]