28408020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27851}}^1$

素因数の和:27880

約数の個数: 48

約数和(自身を含む): 84224448

約数和(自身を除く): 55816428

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, 27851, 55702, 83553, 111404, 139255, 167106, 278510, 334212, 417765, 473467, 557020, 835530, 946934, 1420401, 1671060, 1893868, 2367335, 2840802, 4734670, 5681604, 7102005, 9469340, 14204010, 28408020]

約数ペア:

[(1, 28408020), (2, 14204010), (3, 9469340), (4, 7102005), (5, 5681604), (6, 4734670), (10, 2840802), (12, 2367335), (15, 1893868), (17, 1671060), (20, 1420401), (30, 946934), (34, 835530), (51, 557020), (60, 473467), (68, 417765), (85, 334212), (102, 278510), (170, 167106), (204, 139255), (255, 111404), (340, 83553), (510, 55702), (1020, 27851)]