64280020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9769}}^1$

素因数の和:9832

約数の個数: 48

約数和(自身を含む): 157570560

約数和(自身を除く): 93290540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 9769, 19538, 39076, 48845, 68383, 97690, 136766, 195380, 273532, 341915, 459143, 683830, 918286, 1367660, 1836572, 2295715, 3214001, 4591430, 6428002, 9182860, 12856004, 16070005, 32140010, 64280020]

約数ペア:

[(1, 64280020), (2, 32140010), (4, 16070005), (5, 12856004), (7, 9182860), (10, 6428002), (14, 4591430), (20, 3214001), (28, 2295715), (35, 1836572), (47, 1367660), (70, 918286), (94, 683830), (140, 459143), (188, 341915), (235, 273532), (329, 195380), (470, 136766), (658, 97690), (940, 68383), (1316, 48845), (1645, 39076), (3290, 19538), (6580, 9769)]