18972310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1249}}^1$

素因数の和:1301

約数の個数: 48

約数和(自身を含む): 41040000

約数和(自身を除く): 22067690

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 98, 155, 217, 245, 310, 434, 490, 1085, 1249, 1519, 2170, 2498, 3038, 6245, 7595, 8743, 12490, 15190, 17486, 38719, 43715, 61201, 77438, 87430, 122402, 193595, 271033, 306005, 387190, 542066, 612010, 1355165, 1897231, 2710330, 3794462, 9486155, 18972310]

約数ペア:

[(1, 18972310), (2, 9486155), (5, 3794462), (7, 2710330), (10, 1897231), (14, 1355165), (31, 612010), (35, 542066), (49, 387190), (62, 306005), (70, 271033), (98, 193595), (155, 122402), (217, 87430), (245, 77438), (310, 61201), (434, 43715), (490, 38719), (1085, 17486), (1249, 15190), (1519, 12490), (2170, 8743), (2498, 7595), (3038, 6245)]