18705830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 40255488

約数和(自身を除く): 21549658

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 103, 110, 127, 130, 143, 206, 254, 286, 515, 635, 715, 1030, 1133, 1270, 1339, 1397, 1430, 1651, 2266, 2678, 2794, 3302, 5665, 6695, 6985, 8255, 11330, 13081, 13390, 13970, 14729, 16510, 18161, 26162, 29458, 36322, 65405, 73645, 90805, 130810, 143891, 147290, 170053, 181610, 287782, 340106, 719455, 850265, 1438910, 1700530, 1870583, 3741166, 9352915, 18705830]

約数ペア:

[(1, 18705830), (2, 9352915), (5, 3741166), (10, 1870583), (11, 1700530), (13, 1438910), (22, 850265), (26, 719455), (55, 340106), (65, 287782), (103, 181610), (110, 170053), (127, 147290), (130, 143891), (143, 130810), (206, 90805), (254, 73645), (286, 65405), (515, 36322), (635, 29458), (715, 26162), (1030, 18161), (1133, 16510), (1270, 14729), (1339, 13970), (1397, 13390), (1430, 13081), (1651, 11330), (2266, 8255), (2678, 6985), (2794, 6695), (3302, 5665)]