27784280

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 64951200

約数和(自身を除く): 37166920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 61, 118, 122, 193, 236, 244, 295, 305, 386, 472, 488, 590, 610, 772, 965, 1180, 1220, 1544, 1930, 2360, 2440, 3599, 3860, 7198, 7720, 11387, 11773, 14396, 17995, 22774, 23546, 28792, 35990, 45548, 47092, 56935, 58865, 71980, 91096, 94184, 113870, 117730, 143960, 227740, 235460, 455480, 470920, 694607, 1389214, 2778428, 3473035, 5556856, 6946070, 13892140, 27784280]

約数ペア:

[(1, 27784280), (2, 13892140), (4, 6946070), (5, 5556856), (8, 3473035), (10, 2778428), (20, 1389214), (40, 694607), (59, 470920), (61, 455480), (118, 235460), (122, 227740), (193, 143960), (236, 117730), (244, 113870), (295, 94184), (305, 91096), (386, 71980), (472, 58865), (488, 56935), (590, 47092), (610, 45548), (772, 35990), (965, 28792), (1180, 23546), (1220, 22774), (1544, 17995), (1930, 14396), (2360, 11773), (2440, 11387), (3599, 7720), (3860, 7198)]