2221220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 5080320

約数和(自身を除く): 2859100

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 139, 170, 188, 235, 278, 340, 470, 556, 695, 799, 940, 1390, 1598, 2363, 2780, 3196, 3995, 4726, 6533, 7990, 9452, 11815, 13066, 15980, 23630, 26132, 32665, 47260, 65330, 111061, 130660, 222122, 444244, 555305, 1110610, 2221220]

約数ペア:

[(1, 2221220), (2, 1110610), (4, 555305), (5, 444244), (10, 222122), (17, 130660), (20, 111061), (34, 65330), (47, 47260), (68, 32665), (85, 26132), (94, 23630), (139, 15980), (170, 13066), (188, 11815), (235, 9452), (278, 7990), (340, 6533), (470, 4726), (556, 3995), (695, 3196), (799, 2780), (940, 2363), (1390, 1598)]