161888272

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{111187}}^1$

素因数の和:111215

約数の個数: 40

約数和(自身を含む): 386044736

約数和(自身を除く): 224156464

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 111187, 222374, 444748, 778309, 889496, 1445431, 1556618, 1778992, 2890862, 3113236, 5781724, 6226472, 10118017, 11563448, 12452944, 20236034, 23126896, 40472068, 80944136, 161888272]

約数ペア:

[(1, 161888272), (2, 80944136), (4, 40472068), (7, 23126896), (8, 20236034), (13, 12452944), (14, 11563448), (16, 10118017), (26, 6226472), (28, 5781724), (52, 3113236), (56, 2890862), (91, 1778992), (104, 1556618), (112, 1445431), (182, 889496), (208, 778309), (364, 444748), (728, 222374), (1456, 111187)]