201423280

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{23099}}^1$

素因数の和:23221

約数の個数: 40

約数和(自身を含む): 472626000

約数和(自身を除く): 271202720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 23099, 46198, 92396, 115495, 184792, 230990, 369584, 461980, 923960, 1847920, 2517791, 5035582, 10071164, 12588955, 20142328, 25177910, 40284656, 50355820, 100711640, 201423280]

約数ペア:

[(1, 201423280), (2, 100711640), (4, 50355820), (5, 40284656), (8, 25177910), (10, 20142328), (16, 12588955), (20, 10071164), (40, 5035582), (80, 2517791), (109, 1847920), (218, 923960), (436, 461980), (545, 369584), (872, 230990), (1090, 184792), (1744, 115495), (2180, 92396), (4360, 46198), (8720, 23099)]