19924850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2131}}^1$

素因数の和:2171

約数の個数: 48

約数和(自身を含む): 42827616

約数和(自身を除く): 22902766

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 170, 187, 275, 374, 425, 550, 850, 935, 1870, 2131, 4262, 4675, 9350, 10655, 21310, 23441, 36227, 46882, 53275, 72454, 106550, 117205, 181135, 234410, 362270, 398497, 586025, 796994, 905675, 1172050, 1811350, 1992485, 3984970, 9962425, 19924850]

約数ペア:

[(1, 19924850), (2, 9962425), (5, 3984970), (10, 1992485), (11, 1811350), (17, 1172050), (22, 905675), (25, 796994), (34, 586025), (50, 398497), (55, 362270), (85, 234410), (110, 181135), (170, 117205), (187, 106550), (275, 72454), (374, 53275), (425, 46882), (550, 36227), (850, 23441), (935, 21310), (1870, 10655), (2131, 9350), (4262, 4675)]