18640028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 37691136

約数和(自身を除く): 19051108

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 113, 163, 226, 253, 326, 452, 506, 652, 1012, 1243, 1793, 2486, 2599, 3586, 3749, 4972, 5198, 7172, 7498, 10396, 14996, 18419, 28589, 36838, 41239, 57178, 73676, 82478, 114356, 164956, 202609, 405218, 423637, 810436, 847274, 1694548, 4660007, 9320014, 18640028]

約数ペア:

[(1, 18640028), (2, 9320014), (4, 4660007), (11, 1694548), (22, 847274), (23, 810436), (44, 423637), (46, 405218), (92, 202609), (113, 164956), (163, 114356), (226, 82478), (253, 73676), (326, 57178), (452, 41239), (506, 36838), (652, 28589), (1012, 18419), (1243, 14996), (1793, 10396), (2486, 7498), (2599, 7172), (3586, 5198), (3749, 4972)]