2905919920

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{615661}}^1$

素因数の和:615733

約数の個数: 40

約数和(自身を含む): 6870787920

約数和(自身を除く): 3964868000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4720, 615661, 1231322, 2462644, 3078305, 4925288, 6156610, 9850576, 12313220, 24626440, 36323999, 49252880, 72647998, 145295996, 181619995, 290591992, 363239990, 581183984, 726479980, 1452959960, 2905919920]

約数ペア:

[(1, 2905919920), (2, 1452959960), (4, 726479980), (5, 581183984), (8, 363239990), (10, 290591992), (16, 181619995), (20, 145295996), (40, 72647998), (59, 49252880), (80, 36323999), (118, 24626440), (236, 12313220), (295, 9850576), (472, 6156610), (590, 4925288), (944, 3078305), (1180, 2462644), (2360, 1231322), (4720, 615661)]