18121120

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3061}}^1$

素因数の和:3113

約数の個数: 48

約数和(自身を含む): 43982568

約数和(自身を除く): 25861448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3061, 5920, 6122, 12244, 15305, 24488, 30610, 48976, 61220, 97952, 113257, 122440, 226514, 244880, 453028, 489760, 566285, 906056, 1132570, 1812112, 2265140, 3624224, 4530280, 9060560, 18121120]

約数ペア:

[(1, 18121120), (2, 9060560), (4, 4530280), (5, 3624224), (8, 2265140), (10, 1812112), (16, 1132570), (20, 906056), (32, 566285), (37, 489760), (40, 453028), (74, 244880), (80, 226514), (148, 122440), (160, 113257), (185, 97952), (296, 61220), (370, 48976), (592, 30610), (740, 24488), (1184, 15305), (1480, 12244), (2960, 6122), (3061, 5920)]