161703760

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{27689}}^1$

素因数の和:27775

約数の個数: 40

約数和(自身を含む): 381125160

約数和(自身を除く): 219421400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 27689, 55378, 110756, 138445, 221512, 276890, 443024, 553780, 1107560, 2021297, 2215120, 4042594, 8085188, 10106485, 16170376, 20212970, 32340752, 40425940, 80851880, 161703760]

約数ペア:

[(1, 161703760), (2, 80851880), (4, 40425940), (5, 32340752), (8, 20212970), (10, 16170376), (16, 10106485), (20, 8085188), (40, 4042594), (73, 2215120), (80, 2021297), (146, 1107560), (292, 553780), (365, 443024), (584, 276890), (730, 221512), (1168, 138445), (1460, 110756), (2920, 55378), (5840, 27689)]