19235320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:616

約数の個数: 64

約数和(自身を含む): 47355840

約数和(自身を除く): 28120520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 520, 521, 568, 710, 923, 1042, 1420, 1846, 2084, 2605, 2840, 3692, 4168, 4615, 5210, 6773, 7384, 9230, 10420, 13546, 18460, 20840, 27092, 33865, 36920, 36991, 54184, 67730, 73982, 135460, 147964, 184955, 270920, 295928, 369910, 480883, 739820, 961766, 1479640, 1923532, 2404415, 3847064, 4808830, 9617660, 19235320]

約数ペア:

[(1, 19235320), (2, 9617660), (4, 4808830), (5, 3847064), (8, 2404415), (10, 1923532), (13, 1479640), (20, 961766), (26, 739820), (40, 480883), (52, 369910), (65, 295928), (71, 270920), (104, 184955), (130, 147964), (142, 135460), (260, 73982), (284, 67730), (355, 54184), (520, 36991), (521, 36920), (568, 33865), (710, 27092), (923, 20840), (1042, 18460), (1420, 13546), (1846, 10420), (2084, 9230), (2605, 7384), (2840, 6773), (3692, 5210), (4168, 4615)]