68287640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{431}}^1$

素因数の和:692

約数の個数: 64

約数和(自身を含む): 163762560

約数和(自身を除く): 95474920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 233, 340, 431, 466, 680, 862, 932, 1165, 1724, 1864, 2155, 2330, 3448, 3961, 4310, 4660, 7327, 7922, 8620, 9320, 14654, 15844, 17240, 19805, 29308, 31688, 36635, 39610, 58616, 73270, 79220, 100423, 146540, 158440, 200846, 293080, 401692, 502115, 803384, 1004230, 1707191, 2008460, 3414382, 4016920, 6828764, 8535955, 13657528, 17071910, 34143820, 68287640]

約数ペア:

[(1, 68287640), (2, 34143820), (4, 17071910), (5, 13657528), (8, 8535955), (10, 6828764), (17, 4016920), (20, 3414382), (34, 2008460), (40, 1707191), (68, 1004230), (85, 803384), (136, 502115), (170, 401692), (233, 293080), (340, 200846), (431, 158440), (466, 146540), (680, 100423), (862, 79220), (932, 73270), (1165, 58616), (1724, 39610), (1864, 36635), (2155, 31688), (2330, 29308), (3448, 19805), (3961, 17240), (4310, 15844), (4660, 14654), (7327, 9320), (7922, 8620)]