15857380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1471}}^1$

素因数の和:1505

約数の個数: 72

約数和(自身を含む): 42287616

約数和(自身を除く): 26430236

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1471, 1540, 2156, 2695, 2942, 5390, 5884, 7355, 10297, 10780, 14710, 16181, 20594, 29420, 32362, 41188, 51485, 64724, 72079, 80905, 102970, 113267, 144158, 161810, 205940, 226534, 288316, 323620, 360395, 453068, 566335, 720790, 792869, 1132670, 1441580, 1585738, 2265340, 3171476, 3964345, 7928690, 15857380]

約数ペア:

[(1, 15857380), (2, 7928690), (4, 3964345), (5, 3171476), (7, 2265340), (10, 1585738), (11, 1441580), (14, 1132670), (20, 792869), (22, 720790), (28, 566335), (35, 453068), (44, 360395), (49, 323620), (55, 288316), (70, 226534), (77, 205940), (98, 161810), (110, 144158), (140, 113267), (154, 102970), (196, 80905), (220, 72079), (245, 64724), (308, 51485), (385, 41188), (490, 32362), (539, 29420), (770, 20594), (980, 16181), (1078, 14710), (1471, 10780), (1540, 10297), (2156, 7355), (2695, 5884), (2942, 5390)]