81739040

素因数分解:

$2^5\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2953}}^1$

素因数の和:3141

約数の個数: 48

約数和(自身を含む): 194290488

約数和(自身を除く): 112551448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 173, 346, 692, 865, 1384, 1730, 2768, 2953, 3460, 5536, 5906, 6920, 11812, 13840, 14765, 23624, 27680, 29530, 47248, 59060, 94496, 118120, 236240, 472480, 510869, 1021738, 2043476, 2554345, 4086952, 5108690, 8173904, 10217380, 16347808, 20434760, 40869520, 81739040]

約数ペア:

[(1, 81739040), (2, 40869520), (4, 20434760), (5, 16347808), (8, 10217380), (10, 8173904), (16, 5108690), (20, 4086952), (32, 2554345), (40, 2043476), (80, 1021738), (160, 510869), (173, 472480), (346, 236240), (692, 118120), (865, 94496), (1384, 59060), (1730, 47248), (2768, 29530), (2953, 27680), (3460, 23624), (5536, 14765), (5906, 13840), (6920, 11812)]