31051920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1187}}^1$

素因数の和:1312

約数の個数: 80

約数和(自身を含む): 97225920

約数和(自身を除く): 66174000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 109, 120, 218, 240, 327, 436, 545, 654, 872, 1090, 1187, 1308, 1635, 1744, 2180, 2374, 2616, 3270, 3561, 4360, 4748, 5232, 5935, 6540, 7122, 8720, 9496, 11870, 13080, 14244, 17805, 18992, 23740, 26160, 28488, 35610, 47480, 56976, 71220, 94960, 129383, 142440, 258766, 284880, 388149, 517532, 646915, 776298, 1035064, 1293830, 1552596, 1940745, 2070128, 2587660, 3105192, 3881490, 5175320, 6210384, 7762980, 10350640, 15525960, 31051920]

約数ペア:

[(1, 31051920), (2, 15525960), (3, 10350640), (4, 7762980), (5, 6210384), (6, 5175320), (8, 3881490), (10, 3105192), (12, 2587660), (15, 2070128), (16, 1940745), (20, 1552596), (24, 1293830), (30, 1035064), (40, 776298), (48, 646915), (60, 517532), (80, 388149), (109, 284880), (120, 258766), (218, 142440), (240, 129383), (327, 94960), (436, 71220), (545, 56976), (654, 47480), (872, 35610), (1090, 28488), (1187, 26160), (1308, 23740), (1635, 18992), (1744, 17805), (2180, 14244), (2374, 13080), (2616, 11870), (3270, 9496), (3561, 8720), (4360, 7122), (4748, 6540), (5232, 5935)]