161013560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{98179}}^1$

素因数の和:98231

約数の個数: 32

約数和(自身を含む): 371120400

約数和(自身を除く): 210106840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 98179, 196358, 392716, 490895, 785432, 981790, 1963580, 3927160, 4025339, 8050678, 16101356, 20126695, 32202712, 40253390, 80506780, 161013560]

約数ペア:

[(1, 161013560), (2, 80506780), (4, 40253390), (5, 32202712), (8, 20126695), (10, 16101356), (20, 8050678), (40, 4025339), (41, 3927160), (82, 1963580), (164, 981790), (205, 785432), (328, 490895), (410, 392716), (820, 196358), (1640, 98179)]