18407770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 38102400

約数和(自身を除く): 19694630

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 41, 82, 85, 95, 139, 170, 190, 205, 278, 323, 410, 646, 695, 697, 779, 1390, 1394, 1558, 1615, 2363, 2641, 3230, 3485, 3895, 4726, 5282, 5699, 6970, 7790, 11398, 11815, 13205, 13243, 23630, 26410, 26486, 28495, 44897, 56990, 66215, 89794, 96883, 108281, 132430, 193766, 216562, 224485, 448970, 484415, 541405, 968830, 1082810, 1840777, 3681554, 9203885, 18407770]

約数ペア:

[(1, 18407770), (2, 9203885), (5, 3681554), (10, 1840777), (17, 1082810), (19, 968830), (34, 541405), (38, 484415), (41, 448970), (82, 224485), (85, 216562), (95, 193766), (139, 132430), (170, 108281), (190, 96883), (205, 89794), (278, 66215), (323, 56990), (410, 44897), (646, 28495), (695, 26486), (697, 26410), (779, 23630), (1390, 13243), (1394, 13205), (1558, 11815), (1615, 11398), (2363, 7790), (2641, 6970), (3230, 5699), (3485, 5282), (3895, 4726)]