20665610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 44651520

約数和(自身を除く): 23985910

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 79, 101, 158, 185, 202, 259, 370, 395, 505, 518, 553, 707, 790, 1010, 1106, 1295, 1414, 2590, 2765, 2923, 3535, 3737, 5530, 5846, 7070, 7474, 7979, 14615, 15958, 18685, 20461, 26159, 29230, 37370, 39895, 40922, 52318, 55853, 79790, 102305, 111706, 130795, 204610, 261590, 279265, 295223, 558530, 590446, 1476115, 2066561, 2952230, 4133122, 10332805, 20665610]

約数ペア:

[(1, 20665610), (2, 10332805), (5, 4133122), (7, 2952230), (10, 2066561), (14, 1476115), (35, 590446), (37, 558530), (70, 295223), (74, 279265), (79, 261590), (101, 204610), (158, 130795), (185, 111706), (202, 102305), (259, 79790), (370, 55853), (395, 52318), (505, 40922), (518, 39895), (553, 37370), (707, 29230), (790, 26159), (1010, 20461), (1106, 18685), (1295, 15958), (1414, 14615), (2590, 7979), (2765, 7474), (2923, 7070), (3535, 5846), (3737, 5530)]