20486160

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{769}}^1$

素因数の和:825

約数の個数: 120

約数和(自身を含む): 70750680

約数和(自身を除く): 50264520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 111, 120, 144, 148, 180, 185, 222, 240, 296, 333, 360, 370, 444, 555, 592, 666, 720, 740, 769, 888, 1110, 1332, 1480, 1538, 1665, 1776, 2220, 2307, 2664, 2960, 3076, 3330, 3845, 4440, 4614, 5328, 6152, 6660, 6921, 7690, 8880, 9228, 11535, 12304, 13320, 13842, 15380, 18456, 23070, 26640, 27684, 28453, 30760, 34605, 36912, 46140, 55368, 56906, 61520, 69210, 85359, 92280, 110736, 113812, 138420, 142265, 170718, 184560, 227624, 256077, 276840, 284530, 341436, 426795, 455248, 512154, 553680, 569060, 682872, 853590, 1024308, 1138120, 1280385, 1365744, 1707180, 2048616, 2276240, 2560770, 3414360, 4097232, 5121540, 6828720, 10243080, 20486160]

約数ペア:

[(1, 20486160), (2, 10243080), (3, 6828720), (4, 5121540), (5, 4097232), (6, 3414360), (8, 2560770), (9, 2276240), (10, 2048616), (12, 1707180), (15, 1365744), (16, 1280385), (18, 1138120), (20, 1024308), (24, 853590), (30, 682872), (36, 569060), (37, 553680), (40, 512154), (45, 455248), (48, 426795), (60, 341436), (72, 284530), (74, 276840), (80, 256077), (90, 227624), (111, 184560), (120, 170718), (144, 142265), (148, 138420), (180, 113812), (185, 110736), (222, 92280), (240, 85359), (296, 69210), (333, 61520), (360, 56906), (370, 55368), (444, 46140), (555, 36912), (592, 34605), (666, 30760), (720, 28453), (740, 27684), (769, 26640), (888, 23070), (1110, 18456), (1332, 15380), (1480, 13842), (1538, 13320), (1665, 12304), (1776, 11535), (2220, 9228), (2307, 8880), (2664, 7690), (2960, 6921), (3076, 6660), (3330, 6152), (3845, 5328), (4440, 4614)]