31119920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1301}}^1$

素因数の和:1350

約数の個数: 80

約数和(自身を含む): 81369792

約数和(自身を除く): 50249872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1196, 1301, 1495, 1840, 2392, 2602, 2990, 4784, 5204, 5980, 6505, 10408, 11960, 13010, 16913, 20816, 23920, 26020, 29923, 33826, 52040, 59846, 67652, 84565, 104080, 119692, 135304, 149615, 169130, 239384, 270608, 299230, 338260, 388999, 478768, 598460, 676520, 777998, 1196920, 1353040, 1555996, 1944995, 2393840, 3111992, 3889990, 6223984, 7779980, 15559960, 31119920]

約数ペア:

[(1, 31119920), (2, 15559960), (4, 7779980), (5, 6223984), (8, 3889990), (10, 3111992), (13, 2393840), (16, 1944995), (20, 1555996), (23, 1353040), (26, 1196920), (40, 777998), (46, 676520), (52, 598460), (65, 478768), (80, 388999), (92, 338260), (104, 299230), (115, 270608), (130, 239384), (184, 169130), (208, 149615), (230, 135304), (260, 119692), (299, 104080), (368, 84565), (460, 67652), (520, 59846), (598, 52040), (920, 33826), (1040, 29923), (1196, 26020), (1301, 23920), (1495, 20816), (1840, 16913), (2392, 13010), (2602, 11960), (2990, 10408), (4784, 6505), (5204, 5980)]