15983240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4391}}^1$

素因数の和:4422

約数の個数: 64

約数和(自身を含む): 44271360

約数和(自身を除く): 28288120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 4391, 8782, 17564, 21955, 30737, 35128, 43910, 57083, 61474, 87820, 114166, 122948, 153685, 175640, 228332, 245896, 285415, 307370, 399581, 456664, 570830, 614740, 799162, 1141660, 1229480, 1598324, 1997905, 2283320, 3196648, 3995810, 7991620, 15983240]

約数ペア:

[(1, 15983240), (2, 7991620), (4, 3995810), (5, 3196648), (7, 2283320), (8, 1997905), (10, 1598324), (13, 1229480), (14, 1141660), (20, 799162), (26, 614740), (28, 570830), (35, 456664), (40, 399581), (52, 307370), (56, 285415), (65, 245896), (70, 228332), (91, 175640), (104, 153685), (130, 122948), (140, 114166), (182, 87820), (260, 61474), (280, 57083), (364, 43910), (455, 35128), (520, 30737), (728, 21955), (910, 17564), (1820, 8782), (3640, 4391)]