20207180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 51480576

約数和(自身を除く): 31273396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 47, 70, 74, 83, 94, 140, 148, 166, 185, 188, 235, 259, 329, 332, 370, 415, 470, 518, 581, 658, 740, 830, 940, 1036, 1162, 1295, 1316, 1645, 1660, 1739, 2324, 2590, 2905, 3071, 3290, 3478, 3901, 5180, 5810, 6142, 6580, 6956, 7802, 8695, 11620, 12173, 12284, 15355, 15604, 17390, 19505, 21497, 24346, 27307, 30710, 34780, 39010, 42994, 48692, 54614, 60865, 61420, 78020, 85988, 107485, 109228, 121730, 136535, 144337, 214970, 243460, 273070, 288674, 429940, 546140, 577348, 721685, 1010359, 1443370, 2020718, 2886740, 4041436, 5051795, 10103590, 20207180]

約数ペア:

[(1, 20207180), (2, 10103590), (4, 5051795), (5, 4041436), (7, 2886740), (10, 2020718), (14, 1443370), (20, 1010359), (28, 721685), (35, 577348), (37, 546140), (47, 429940), (70, 288674), (74, 273070), (83, 243460), (94, 214970), (140, 144337), (148, 136535), (166, 121730), (185, 109228), (188, 107485), (235, 85988), (259, 78020), (329, 61420), (332, 60865), (370, 54614), (415, 48692), (470, 42994), (518, 39010), (581, 34780), (658, 30710), (740, 27307), (830, 24346), (940, 21497), (1036, 19505), (1162, 17390), (1295, 15604), (1316, 15355), (1645, 12284), (1660, 12173), (1739, 11620), (2324, 8695), (2590, 7802), (2905, 6956), (3071, 6580), (3290, 6142), (3478, 5810), (3901, 5180)]