19618480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:734

約数の個数: 80

約数和(自身を含む): 53193024

約数和(自身を除く): 33574544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 661, 742, 848, 1060, 1322, 1484, 1855, 2120, 2644, 2968, 3305, 3710, 4240, 4627, 5288, 5936, 6610, 7420, 9254, 10576, 13220, 14840, 18508, 23135, 26440, 29680, 35033, 37016, 46270, 52880, 70066, 74032, 92540, 140132, 175165, 185080, 245231, 280264, 350330, 370160, 490462, 560528, 700660, 980924, 1226155, 1401320, 1961848, 2452310, 2802640, 3923696, 4904620, 9809240, 19618480]

約数ペア:

[(1, 19618480), (2, 9809240), (4, 4904620), (5, 3923696), (7, 2802640), (8, 2452310), (10, 1961848), (14, 1401320), (16, 1226155), (20, 980924), (28, 700660), (35, 560528), (40, 490462), (53, 370160), (56, 350330), (70, 280264), (80, 245231), (106, 185080), (112, 175165), (140, 140132), (212, 92540), (265, 74032), (280, 70066), (371, 52880), (424, 46270), (530, 37016), (560, 35033), (661, 29680), (742, 26440), (848, 23135), (1060, 18508), (1322, 14840), (1484, 13220), (1855, 10576), (2120, 9254), (2644, 7420), (2968, 6610), (3305, 5936), (3710, 5288), (4240, 4627)]