71897420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1777}}^1$

素因数の和:1827

約数の個数: 72

約数和(自身を含む): 183404256

約数和(自身を除く): 111506836

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 476, 578, 595, 1156, 1190, 1445, 1777, 2023, 2380, 2890, 3554, 4046, 5780, 7108, 8092, 8885, 10115, 12439, 17770, 20230, 24878, 30209, 35540, 40460, 49756, 60418, 62195, 120836, 124390, 151045, 211463, 248780, 302090, 422926, 513553, 604180, 845852, 1027106, 1057315, 2054212, 2114630, 2567765, 3594871, 4229260, 5135530, 7189742, 10271060, 14379484, 17974355, 35948710, 71897420]

約数ペア:

[(1, 71897420), (2, 35948710), (4, 17974355), (5, 14379484), (7, 10271060), (10, 7189742), (14, 5135530), (17, 4229260), (20, 3594871), (28, 2567765), (34, 2114630), (35, 2054212), (68, 1057315), (70, 1027106), (85, 845852), (119, 604180), (140, 513553), (170, 422926), (238, 302090), (289, 248780), (340, 211463), (476, 151045), (578, 124390), (595, 120836), (1156, 62195), (1190, 60418), (1445, 49756), (1777, 40460), (2023, 35540), (2380, 30209), (2890, 24878), (3554, 20230), (4046, 17770), (5780, 12439), (7108, 10115), (8092, 8885)]