81505140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79907}}^1$

素因数の和:79936

約数の個数: 48

約数和(自身を含む): 241641792

約数和(自身を除く): 160136652

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 79907, 159814, 239721, 319628, 399535, 479442, 799070, 958884, 1198605, 1358419, 1598140, 2397210, 2716838, 4075257, 4794420, 5433676, 6792095, 8150514, 13584190, 16301028, 20376285, 27168380, 40752570, 81505140]

約数ペア:

[(1, 81505140), (2, 40752570), (3, 27168380), (4, 20376285), (5, 16301028), (6, 13584190), (10, 8150514), (12, 6792095), (15, 5433676), (17, 4794420), (20, 4075257), (30, 2716838), (34, 2397210), (51, 1598140), (60, 1358419), (68, 1198605), (85, 958884), (102, 799070), (170, 479442), (204, 399535), (255, 319628), (340, 239721), (510, 159814), (1020, 79907)]