278364924460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{3984611}}^1$

素因数の和:3985126

約数の個数: 48

約数和(自身を含む): 669414816000

約数和(自身を除く): 391049891540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 499, 998, 1996, 2495, 3493, 4990, 6986, 9980, 13972, 17465, 34930, 69860, 3984611, 7969222, 15938444, 19923055, 27892277, 39846110, 55784554, 79692220, 111569108, 139461385, 278922770, 557845540, 1988320889, 3976641778, 7953283556, 9941604445, 13918246223, 19883208890, 27836492446, 39766417780, 55672984892, 69591231115, 139182462230, 278364924460]

約数ペア:

[(1, 278364924460), (2, 139182462230), (4, 69591231115), (5, 55672984892), (7, 39766417780), (10, 27836492446), (14, 19883208890), (20, 13918246223), (28, 9941604445), (35, 7953283556), (70, 3976641778), (140, 1988320889), (499, 557845540), (998, 278922770), (1996, 139461385), (2495, 111569108), (3493, 79692220), (4990, 55784554), (6986, 39846110), (9980, 27892277), (13972, 19923055), (17465, 15938444), (34930, 7969222), (69860, 3984611)]