381554715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{3769}}^1$

素因数の和:4191

約数の個数: 32

約数和(自身を含む): 648198720

約数和(自身を除く): 266644005

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 397, 1191, 1985, 3769, 5955, 6749, 11307, 18845, 20247, 33745, 56535, 64073, 101235, 192219, 320365, 961095, 1496293, 4488879, 7481465, 22444395, 25436981, 76310943, 127184905, 381554715]

約数ペア:

[(1, 381554715), (3, 127184905), (5, 76310943), (15, 25436981), (17, 22444395), (51, 7481465), (85, 4488879), (255, 1496293), (397, 961095), (1191, 320365), (1985, 192219), (3769, 101235), (5955, 64073), (6749, 56535), (11307, 33745), (18845, 20247)]