31439205

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 71884800

約数和(自身を除く): 40445595

約数列:

[1, 3, 5, 7, 9, 15, 17, 19, 21, 27, 35, 45, 51, 57, 63, 85, 95, 103, 105, 119, 133, 135, 153, 171, 189, 255, 285, 309, 315, 323, 357, 399, 459, 513, 515, 595, 665, 721, 765, 855, 927, 945, 969, 1071, 1197, 1545, 1615, 1751, 1785, 1957, 1995, 2163, 2261, 2295, 2565, 2781, 2907, 3213, 3591, 3605, 4635, 4845, 5253, 5355, 5871, 5985, 6489, 6783, 8721, 8755, 9785, 10815, 11305, 12257, 13699, 13905, 14535, 15759, 16065, 17613, 17955, 19467, 20349, 26265, 29355, 32445, 33269, 33915, 36771, 41097, 43605, 47277, 52839, 61047, 61285, 68495, 78795, 88065, 97335, 99807, 101745, 110313, 123291, 166345, 183855, 205485, 232883, 236385, 264195, 299421, 305235, 330939, 369873, 499035, 551565, 616455, 698649, 898263, 1164415, 1497105, 1654695, 1849365, 2095947, 3493245, 4491315, 6287841, 10479735, 31439205]

約数ペア:

[(1, 31439205), (3, 10479735), (5, 6287841), (7, 4491315), (9, 3493245), (15, 2095947), (17, 1849365), (19, 1654695), (21, 1497105), (27, 1164415), (35, 898263), (45, 698649), (51, 616455), (57, 551565), (63, 499035), (85, 369873), (95, 330939), (103, 305235), (105, 299421), (119, 264195), (133, 236385), (135, 232883), (153, 205485), (171, 183855), (189, 166345), (255, 123291), (285, 110313), (309, 101745), (315, 99807), (323, 97335), (357, 88065), (399, 78795), (459, 68495), (513, 61285), (515, 61047), (595, 52839), (665, 47277), (721, 43605), (765, 41097), (855, 36771), (927, 33915), (945, 33269), (969, 32445), (1071, 29355), (1197, 26265), (1545, 20349), (1615, 19467), (1751, 17955), (1785, 17613), (1957, 16065), (1995, 15759), (2163, 14535), (2261, 13905), (2295, 13699), (2565, 12257), (2781, 11305), (2907, 10815), (3213, 9785), (3591, 8755), (3605, 8721), (4635, 6783), (4845, 6489), (5253, 5985), (5355, 5871)]