15639260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{661}}^1$

素因数の和:703

約数の個数: 72

約数和(自身を含む): 40705056

約数和(自身を除く): 25065796

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 661, 676, 845, 910, 1183, 1322, 1690, 1820, 2366, 2644, 3305, 3380, 4627, 4732, 5915, 6610, 8593, 9254, 11830, 13220, 17186, 18508, 23135, 23660, 34372, 42965, 46270, 60151, 85930, 92540, 111709, 120302, 171860, 223418, 240604, 300755, 446836, 558545, 601510, 781963, 1117090, 1203020, 1563926, 2234180, 3127852, 3909815, 7819630, 15639260]

約数ペア:

[(1, 15639260), (2, 7819630), (4, 3909815), (5, 3127852), (7, 2234180), (10, 1563926), (13, 1203020), (14, 1117090), (20, 781963), (26, 601510), (28, 558545), (35, 446836), (52, 300755), (65, 240604), (70, 223418), (91, 171860), (130, 120302), (140, 111709), (169, 92540), (182, 85930), (260, 60151), (338, 46270), (364, 42965), (455, 34372), (661, 23660), (676, 23135), (845, 18508), (910, 17186), (1183, 13220), (1322, 11830), (1690, 9254), (1820, 8593), (2366, 6610), (2644, 5915), (3305, 4732), (3380, 4627)]