218949445

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 330946560

約数和(自身を除く): 111997115

約数列:

[1, 5, 11, 13, 19, 55, 65, 71, 95, 143, 209, 227, 247, 355, 715, 781, 923, 1045, 1135, 1235, 1349, 2497, 2717, 2951, 3905, 4313, 4615, 6745, 10153, 12485, 13585, 14755, 14839, 16117, 17537, 21565, 32461, 47443, 50765, 56069, 74195, 80585, 87685, 162305, 177287, 192907, 209521, 237215, 280345, 306223, 616759, 886435, 964535, 1047605, 1531115, 2304731, 3083795, 3368453, 3980899, 11523655, 16842265, 19904495, 43789889, 218949445]

約数ペア:

[(1, 218949445), (5, 43789889), (11, 19904495), (13, 16842265), (19, 11523655), (55, 3980899), (65, 3368453), (71, 3083795), (95, 2304731), (143, 1531115), (209, 1047605), (227, 964535), (247, 886435), (355, 616759), (715, 306223), (781, 280345), (923, 237215), (1045, 209521), (1135, 192907), (1235, 177287), (1349, 162305), (2497, 87685), (2717, 80585), (2951, 74195), (3905, 56069), (4313, 50765), (4615, 47443), (6745, 32461), (10153, 21565), (12485, 17537), (13585, 16117), (14755, 14839)]