18210290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 21188110

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 79, 89, 158, 178, 185, 259, 370, 395, 445, 518, 553, 623, 790, 890, 1106, 1246, 1295, 2590, 2765, 2923, 3115, 3293, 5530, 5846, 6230, 6586, 7031, 14062, 14615, 16465, 20461, 23051, 29230, 32930, 35155, 40922, 46102, 49217, 70310, 98434, 102305, 115255, 204610, 230510, 246085, 260147, 492170, 520294, 1300735, 1821029, 2601470, 3642058, 9105145, 18210290]

約数ペア:

[(1, 18210290), (2, 9105145), (5, 3642058), (7, 2601470), (10, 1821029), (14, 1300735), (35, 520294), (37, 492170), (70, 260147), (74, 246085), (79, 230510), (89, 204610), (158, 115255), (178, 102305), (185, 98434), (259, 70310), (370, 49217), (395, 46102), (445, 40922), (518, 35155), (553, 32930), (623, 29230), (790, 23051), (890, 20461), (1106, 16465), (1246, 14615), (1295, 14062), (2590, 7031), (2765, 6586), (2923, 6230), (3115, 5846), (3293, 5530)]