207984990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{1277}}^1$

素因数の和:1437

約数の個数: 64

約数和(自身を含む): 513449280

約数和(自身を除く): 305464290

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 89, 122, 178, 183, 267, 305, 366, 445, 534, 610, 890, 915, 1277, 1335, 1830, 2554, 2670, 3831, 5429, 6385, 7662, 10858, 12770, 16287, 19155, 27145, 32574, 38310, 54290, 77897, 81435, 113653, 155794, 162870, 227306, 233691, 340959, 389485, 467382, 568265, 681918, 778970, 1136530, 1168455, 1704795, 2336910, 3409590, 6932833, 13865666, 20798499, 34664165, 41596998, 69328330, 103992495, 207984990]

約数ペア:

[(1, 207984990), (2, 103992495), (3, 69328330), (5, 41596998), (6, 34664165), (10, 20798499), (15, 13865666), (30, 6932833), (61, 3409590), (89, 2336910), (122, 1704795), (178, 1168455), (183, 1136530), (267, 778970), (305, 681918), (366, 568265), (445, 467382), (534, 389485), (610, 340959), (890, 233691), (915, 227306), (1277, 162870), (1335, 155794), (1830, 113653), (2554, 81435), (2670, 77897), (3831, 54290), (5429, 38310), (6385, 32574), (7662, 27145), (10858, 19155), (12770, 16287)]