278949205220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{15629}}^1\times {\mathrm{127487}}^1$

素因数の和:143132

約数の個数: 48

約数和(自身を含む): 669526179840

約数和(自身を除く): 390576974620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 15629, 31258, 62516, 78145, 109403, 127487, 156290, 218806, 254974, 312580, 437612, 509948, 547015, 637435, 892409, 1094030, 1274870, 1784818, 2188060, 2549740, 3569636, 4462045, 8924090, 17848180, 1992494323, 3984988646, 7969977292, 9962471615, 13947460261, 19924943230, 27894920522, 39849886460, 55789841044, 69737301305, 139474602610, 278949205220]

約数ペア:

[(1, 278949205220), (2, 139474602610), (4, 69737301305), (5, 55789841044), (7, 39849886460), (10, 27894920522), (14, 19924943230), (20, 13947460261), (28, 9962471615), (35, 7969977292), (70, 3984988646), (140, 1992494323), (15629, 17848180), (31258, 8924090), (62516, 4462045), (78145, 3569636), (109403, 2549740), (127487, 2188060), (156290, 1784818), (218806, 1274870), (254974, 1094030), (312580, 892409), (437612, 637435), (509948, 547015)]