31241840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1187}}^1$

素因数の和:1254

約数の個数: 80

約数和(自身を含む): 84851712

約数和(自身を除く): 53609872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 752, 940, 1187, 1316, 1645, 1880, 2374, 2632, 3290, 3760, 4748, 5264, 5935, 6580, 8309, 9496, 11870, 13160, 16618, 18992, 23740, 26320, 33236, 41545, 47480, 55789, 66472, 83090, 94960, 111578, 132944, 166180, 223156, 278945, 332360, 390523, 446312, 557890, 664720, 781046, 892624, 1115780, 1562092, 1952615, 2231560, 3124184, 3905230, 4463120, 6248368, 7810460, 15620920, 31241840]

約数ペア:

[(1, 31241840), (2, 15620920), (4, 7810460), (5, 6248368), (7, 4463120), (8, 3905230), (10, 3124184), (14, 2231560), (16, 1952615), (20, 1562092), (28, 1115780), (35, 892624), (40, 781046), (47, 664720), (56, 557890), (70, 446312), (80, 390523), (94, 332360), (112, 278945), (140, 223156), (188, 166180), (235, 132944), (280, 111578), (329, 94960), (376, 83090), (470, 66472), (560, 55789), (658, 47480), (752, 41545), (940, 33236), (1187, 26320), (1316, 23740), (1645, 18992), (1880, 16618), (2374, 13160), (2632, 11870), (3290, 9496), (3760, 8309), (4748, 6580), (5264, 5935)]