247968760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{476863}}^1$

素因数の和:476887

約数の個数: 32

約数和(自身を含む): 600848640

約数和(自身を除く): 352879880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 476863, 953726, 1907452, 2384315, 3814904, 4768630, 6199219, 9537260, 12398438, 19074520, 24796876, 30996095, 49593752, 61992190, 123984380, 247968760]

約数ペア:

[(1, 247968760), (2, 123984380), (4, 61992190), (5, 49593752), (8, 30996095), (10, 24796876), (13, 19074520), (20, 12398438), (26, 9537260), (40, 6199219), (52, 4768630), (65, 3814904), (104, 2384315), (130, 1907452), (260, 953726), (520, 476863)]