400330

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:83

約数の個数: 48

約数和(自身を含む): 902880

約数和(自身を除く): 502550

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 43, 49, 70, 86, 95, 98, 133, 190, 215, 245, 266, 301, 430, 490, 602, 665, 817, 931, 1330, 1505, 1634, 1862, 2107, 3010, 4085, 4214, 4655, 5719, 8170, 9310, 10535, 11438, 21070, 28595, 40033, 57190, 80066, 200165, 400330]

約数ペア:

[(1, 400330), (2, 200165), (5, 80066), (7, 57190), (10, 40033), (14, 28595), (19, 21070), (35, 11438), (38, 10535), (43, 9310), (49, 8170), (70, 5719), (86, 4655), (95, 4214), (98, 4085), (133, 3010), (190, 2107), (215, 1862), (245, 1634), (266, 1505), (301, 1330), (430, 931), (490, 817), (602, 665)]