30972340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1123}}^1$

素因数の和:1336

約数の個数: 48

約数和(自身を含む): 74777472

約数和(自身を除く): 43805132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1123, 1379, 1970, 2246, 2758, 3940, 4492, 5516, 5615, 6895, 7861, 11230, 13790, 15722, 22460, 27580, 31444, 39305, 78610, 157220, 221231, 442462, 884924, 1106155, 1548617, 2212310, 3097234, 4424620, 6194468, 7743085, 15486170, 30972340]

約数ペア:

[(1, 30972340), (2, 15486170), (4, 7743085), (5, 6194468), (7, 4424620), (10, 3097234), (14, 2212310), (20, 1548617), (28, 1106155), (35, 884924), (70, 442462), (140, 221231), (197, 157220), (394, 78610), (788, 39305), (985, 31444), (1123, 27580), (1379, 22460), (1970, 15722), (2246, 13790), (2758, 11230), (3940, 7861), (4492, 6895), (5516, 5615)]