20161749034

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{89}}^2\times {\mathrm{1367}}^1$

素因数の和:1580

約数の個数: 72

約数和(自身を含む): 37479944160

約数和(自身を除く): 17318195126

約数列:

[1, 2, 7, 14, 19, 38, 49, 89, 98, 133, 178, 266, 623, 931, 1246, 1367, 1691, 1862, 2734, 3382, 4361, 7921, 8722, 9569, 11837, 15842, 19138, 23674, 25973, 51946, 55447, 66983, 82859, 110894, 121663, 133966, 150499, 165718, 181811, 243326, 300998, 363622, 388129, 776258, 851641, 1053493, 1272677, 1703282, 2106986, 2311597, 2545354, 4623194, 5961487, 7374451, 10828007, 11922974, 14748902, 16181179, 21656014, 32362358, 75796049, 113268253, 151592098, 205732133, 226536506, 411464266, 530572343, 1061144686, 1440124931, 2880249862, 10080874517, 20161749034]

約数ペア:

[(1, 20161749034), (2, 10080874517), (7, 2880249862), (14, 1440124931), (19, 1061144686), (38, 530572343), (49, 411464266), (89, 226536506), (98, 205732133), (133, 151592098), (178, 113268253), (266, 75796049), (623, 32362358), (931, 21656014), (1246, 16181179), (1367, 14748902), (1691, 11922974), (1862, 10828007), (2734, 7374451), (3382, 5961487), (4361, 4623194), (7921, 2545354), (8722, 2311597), (9569, 2106986), (11837, 1703282), (15842, 1272677), (19138, 1053493), (23674, 851641), (25973, 776258), (51946, 388129), (55447, 363622), (66983, 300998), (82859, 243326), (110894, 181811), (121663, 165718), (133966, 150499)]