20565993980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{37657}}^1$

素因数の和:37803

約数の個数: 96

約数和(自身を含む): 51017250816

約数和(自身を除く): 30451256836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 83, 94, 140, 166, 188, 235, 329, 332, 415, 470, 581, 658, 830, 940, 1162, 1316, 1645, 1660, 2324, 2905, 3290, 3901, 5810, 6580, 7802, 11620, 15604, 19505, 27307, 37657, 39010, 54614, 75314, 78020, 109228, 136535, 150628, 188285, 263599, 273070, 376570, 527198, 546140, 753140, 1054396, 1317995, 1769879, 2635990, 3125531, 3539758, 5271980, 6251062, 7079516, 8849395, 12389153, 12502124, 15627655, 17698790, 21878717, 24778306, 31255310, 35397580, 43757434, 49556612, 61945765, 62510620, 87514868, 109393585, 123891530, 146899957, 218787170, 247783060, 293799914, 437574340, 587599828, 734499785, 1028299699, 1468999570, 2056599398, 2937999140, 4113198796, 5141498495, 10282996990, 20565993980]

約数ペア:

[(1, 20565993980), (2, 10282996990), (4, 5141498495), (5, 4113198796), (7, 2937999140), (10, 2056599398), (14, 1468999570), (20, 1028299699), (28, 734499785), (35, 587599828), (47, 437574340), (70, 293799914), (83, 247783060), (94, 218787170), (140, 146899957), (166, 123891530), (188, 109393585), (235, 87514868), (329, 62510620), (332, 61945765), (415, 49556612), (470, 43757434), (581, 35397580), (658, 31255310), (830, 24778306), (940, 21878717), (1162, 17698790), (1316, 15627655), (1645, 12502124), (1660, 12389153), (2324, 8849395), (2905, 7079516), (3290, 6251062), (3901, 5271980), (5810, 3539758), (6580, 3125531), (7802, 2635990), (11620, 1769879), (15604, 1317995), (19505, 1054396), (27307, 753140), (37657, 546140), (39010, 527198), (54614, 376570), (75314, 273070), (78020, 263599), (109228, 188285), (136535, 150628)]