18807530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 22664470

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 79, 95, 133, 158, 179, 190, 266, 358, 395, 553, 665, 790, 895, 1106, 1253, 1330, 1501, 1790, 2506, 2765, 3002, 3401, 5530, 6265, 6802, 7505, 10507, 12530, 14141, 15010, 17005, 21014, 23807, 28282, 34010, 47614, 52535, 70705, 98987, 105070, 119035, 141410, 197974, 238070, 268679, 494935, 537358, 989870, 1343395, 1880753, 2686790, 3761506, 9403765, 18807530]

約数ペア:

[(1, 18807530), (2, 9403765), (5, 3761506), (7, 2686790), (10, 1880753), (14, 1343395), (19, 989870), (35, 537358), (38, 494935), (70, 268679), (79, 238070), (95, 197974), (133, 141410), (158, 119035), (179, 105070), (190, 98987), (266, 70705), (358, 52535), (395, 47614), (553, 34010), (665, 28282), (790, 23807), (895, 21014), (1106, 17005), (1253, 15010), (1330, 14141), (1501, 12530), (1790, 10507), (2506, 7505), (2765, 6802), (3002, 6265), (3401, 5530)]