20161993740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6857821}}^1$

素因数の和:6857847

約数の個数: 72

約数和(自身を含む): 65670503472

約数和(自身を除く): 45508509732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6857821, 13715642, 20573463, 27431284, 34289105, 41146926, 48004747, 68578210, 82293852, 96009494, 102867315, 137156420, 144014241, 192018988, 205734630, 240023735, 288028482, 336033229, 411469260, 480047470, 576056964, 672066458, 720071205, 960094940, 1008099687, 1344132916, 1440142410, 1680166145, 2016199374, 2880284820, 3360332290, 4032398748, 5040498435, 6720664580, 10080996870, 20161993740]

約数ペア:

[(1, 20161993740), (2, 10080996870), (3, 6720664580), (4, 5040498435), (5, 4032398748), (6, 3360332290), (7, 2880284820), (10, 2016199374), (12, 1680166145), (14, 1440142410), (15, 1344132916), (20, 1008099687), (21, 960094940), (28, 720071205), (30, 672066458), (35, 576056964), (42, 480047470), (49, 411469260), (60, 336033229), (70, 288028482), (84, 240023735), (98, 205734630), (105, 192018988), (140, 144014241), (147, 137156420), (196, 102867315), (210, 96009494), (245, 82293852), (294, 68578210), (420, 48004747), (490, 41146926), (588, 34289105), (735, 27431284), (980, 20573463), (1470, 13715642), (2940, 6857821)]