31035760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{353}}^1$

素因数の和:530

約数の個数: 80

約数和(自身を含む): 83226816

約数和(自身を除く): 52191056

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 353, 560, 628, 706, 785, 1099, 1256, 1412, 1570, 1765, 2198, 2471, 2512, 2824, 3140, 3530, 4396, 4942, 5495, 5648, 6280, 7060, 8792, 9884, 10990, 12355, 12560, 14120, 17584, 19768, 21980, 24710, 28240, 39536, 43960, 49420, 55421, 87920, 98840, 110842, 197680, 221684, 277105, 387947, 443368, 554210, 775894, 886736, 1108420, 1551788, 1939735, 2216840, 3103576, 3879470, 4433680, 6207152, 7758940, 15517880, 31035760]

約数ペア:

[(1, 31035760), (2, 15517880), (4, 7758940), (5, 6207152), (7, 4433680), (8, 3879470), (10, 3103576), (14, 2216840), (16, 1939735), (20, 1551788), (28, 1108420), (35, 886736), (40, 775894), (56, 554210), (70, 443368), (80, 387947), (112, 277105), (140, 221684), (157, 197680), (280, 110842), (314, 98840), (353, 87920), (560, 55421), (628, 49420), (706, 43960), (785, 39536), (1099, 28240), (1256, 24710), (1412, 21980), (1570, 19768), (1765, 17584), (2198, 14120), (2471, 12560), (2512, 12355), (2824, 10990), (3140, 9884), (3530, 8792), (4396, 7060), (4942, 6280), (5495, 5648)]