20161567340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1121333}}^1$

素因数の和:1121402

約数の個数: 48

約数和(自身を含む): 45212186880

約数和(自身を除く): 25050619540

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1798, 3596, 4495, 8990, 17980, 1121333, 2242666, 4485332, 5606665, 11213330, 22426660, 32518657, 34761323, 65037314, 69522646, 130074628, 139045292, 162593285, 173806615, 325186570, 347613230, 650373140, 695226460, 1008078367, 2016156734, 4032313468, 5040391835, 10080783670, 20161567340]

約数ペア:

[(1, 20161567340), (2, 10080783670), (4, 5040391835), (5, 4032313468), (10, 2016156734), (20, 1008078367), (29, 695226460), (31, 650373140), (58, 347613230), (62, 325186570), (116, 173806615), (124, 162593285), (145, 139045292), (155, 130074628), (290, 69522646), (310, 65037314), (580, 34761323), (620, 32518657), (899, 22426660), (1798, 11213330), (3596, 5606665), (4495, 4485332), (8990, 2242666), (17980, 1121333)]