20778888

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 57974400

約数和(自身を除く): 37195512

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 47, 52, 78, 94, 104, 109, 141, 156, 169, 188, 218, 282, 312, 327, 338, 376, 436, 507, 564, 611, 654, 676, 872, 1014, 1128, 1222, 1308, 1352, 1417, 1833, 2028, 2444, 2616, 2834, 3666, 4056, 4251, 4888, 5123, 5668, 7332, 7943, 8502, 10246, 11336, 14664, 15369, 15886, 17004, 18421, 20492, 23829, 30738, 31772, 34008, 36842, 40984, 47658, 55263, 61476, 63544, 66599, 73684, 95316, 110526, 122952, 133198, 147368, 190632, 199797, 221052, 266396, 399594, 442104, 532792, 799188, 865787, 1598376, 1731574, 2597361, 3463148, 5194722, 6926296, 10389444, 20778888]

約数ペア:

[(1, 20778888), (2, 10389444), (3, 6926296), (4, 5194722), (6, 3463148), (8, 2597361), (12, 1731574), (13, 1598376), (24, 865787), (26, 799188), (39, 532792), (47, 442104), (52, 399594), (78, 266396), (94, 221052), (104, 199797), (109, 190632), (141, 147368), (156, 133198), (169, 122952), (188, 110526), (218, 95316), (282, 73684), (312, 66599), (327, 63544), (338, 61476), (376, 55263), (436, 47658), (507, 40984), (564, 36842), (611, 34008), (654, 31772), (676, 30738), (872, 23829), (1014, 20492), (1128, 18421), (1222, 17004), (1308, 15886), (1352, 15369), (1417, 14664), (1833, 11336), (2028, 10246), (2444, 8502), (2616, 7943), (2834, 7332), (3666, 5668), (4056, 5123), (4251, 4888)]