207905080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{613}}^1$

素因数の和:824

約数の個数: 64

約数和(自身を含む): 479656800

約数和(自身を除く): 271751720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 139, 244, 278, 305, 488, 556, 610, 613, 695, 1112, 1220, 1226, 1390, 2440, 2452, 2780, 3065, 4904, 5560, 6130, 8479, 12260, 16958, 24520, 33916, 37393, 42395, 67832, 74786, 84790, 85207, 149572, 169580, 170414, 186965, 299144, 339160, 340828, 373930, 426035, 681656, 747860, 852070, 1495720, 1704140, 3408280, 5197627, 10395254, 20790508, 25988135, 41581016, 51976270, 103952540, 207905080]

約数ペア:

[(1, 207905080), (2, 103952540), (4, 51976270), (5, 41581016), (8, 25988135), (10, 20790508), (20, 10395254), (40, 5197627), (61, 3408280), (122, 1704140), (139, 1495720), (244, 852070), (278, 747860), (305, 681656), (488, 426035), (556, 373930), (610, 340828), (613, 339160), (695, 299144), (1112, 186965), (1220, 170414), (1226, 169580), (1390, 149572), (2440, 85207), (2452, 84790), (2780, 74786), (3065, 67832), (4904, 42395), (5560, 37393), (6130, 33916), (8479, 24520), (12260, 16958)]