2009689040

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{678949}}^1$

素因数の和:678999

約数の個数: 40

約数和(自身を含む): 4798818600

約数和(自身を除く): 2789129560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 678949, 1357898, 2715796, 3394745, 5431592, 6789490, 10863184, 13578980, 25121113, 27157960, 50242226, 54315920, 100484452, 125605565, 200968904, 251211130, 401937808, 502422260, 1004844520, 2009689040]

約数ペア:

[(1, 2009689040), (2, 1004844520), (4, 502422260), (5, 401937808), (8, 251211130), (10, 200968904), (16, 125605565), (20, 100484452), (37, 54315920), (40, 50242226), (74, 27157960), (80, 25121113), (148, 13578980), (185, 10863184), (296, 6789490), (370, 5431592), (592, 3394745), (740, 2715796), (1480, 1357898), (2960, 678949)]