287306885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{4339}}^1$

素因数の和:4421

約数の個数: 32

約数和(自身を含む): 393724800

約数和(自身を除く): 106417915

約数列:

[1, 5, 17, 19, 41, 85, 95, 205, 323, 697, 779, 1615, 3485, 3895, 4339, 13243, 21695, 66215, 73763, 82441, 177899, 368815, 412205, 889495, 1401497, 3024283, 3380081, 7007485, 15121415, 16900405, 57461377, 287306885]

約数ペア:

[(1, 287306885), (5, 57461377), (17, 16900405), (19, 15121415), (41, 7007485), (85, 3380081), (95, 3024283), (205, 1401497), (323, 889495), (697, 412205), (779, 368815), (1615, 177899), (3485, 82441), (3895, 73763), (4339, 66215), (13243, 21695)]