40547920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1187}}^1$

素因数の和:1268

約数の個数: 80

約数和(自身を含む): 109600128

約数和(自身を除く): 69052208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1187, 1220, 1708, 2135, 2374, 2440, 3416, 4270, 4748, 4880, 5935, 6832, 8309, 8540, 9496, 11870, 16618, 17080, 18992, 23740, 33236, 34160, 41545, 47480, 66472, 72407, 83090, 94960, 132944, 144814, 166180, 289628, 332360, 362035, 506849, 579256, 664720, 724070, 1013698, 1158512, 1448140, 2027396, 2534245, 2896280, 4054792, 5068490, 5792560, 8109584, 10136980, 20273960, 40547920]

約数ペア:

[(1, 40547920), (2, 20273960), (4, 10136980), (5, 8109584), (7, 5792560), (8, 5068490), (10, 4054792), (14, 2896280), (16, 2534245), (20, 2027396), (28, 1448140), (35, 1158512), (40, 1013698), (56, 724070), (61, 664720), (70, 579256), (80, 506849), (112, 362035), (122, 332360), (140, 289628), (244, 166180), (280, 144814), (305, 132944), (427, 94960), (488, 83090), (560, 72407), (610, 66472), (854, 47480), (976, 41545), (1187, 34160), (1220, 33236), (1708, 23740), (2135, 18992), (2374, 17080), (2440, 16618), (3416, 11870), (4270, 9496), (4748, 8540), (4880, 8309), (5935, 6832)]