20191376

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3907}}^1$

素因数の和:3951

約数の個数: 40

約数和(自身を含む): 43613280

約数和(自身を除く): 23421904

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 3907, 5168, 7814, 15628, 31256, 62512, 66419, 74233, 132838, 148466, 265676, 296932, 531352, 593864, 1062704, 1187728, 1261961, 2523922, 5047844, 10095688, 20191376]

約数ペア:

[(1, 20191376), (2, 10095688), (4, 5047844), (8, 2523922), (16, 1261961), (17, 1187728), (19, 1062704), (34, 593864), (38, 531352), (68, 296932), (76, 265676), (136, 148466), (152, 132838), (272, 74233), (304, 66419), (323, 62512), (646, 31256), (1292, 15628), (2584, 7814), (3907, 5168)]