1279335040

素因数分解:

$2^7\times 5^1\times {\mathrm{1998961}}^1$

素因数の和:1998980

約数の個数: 32

約数和(自身を含む): 3058411860

約数和(自身を除く): 1779076820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1998961, 3997922, 7995844, 9994805, 15991688, 19989610, 31983376, 39979220, 63966752, 79958440, 127933504, 159916880, 255867008, 319833760, 639667520, 1279335040]

約数ペア:

[(1, 1279335040), (2, 639667520), (4, 319833760), (5, 255867008), (8, 159916880), (10, 127933504), (16, 79958440), (20, 63966752), (32, 39979220), (40, 31983376), (64, 19989610), (80, 15991688), (128, 9994805), (160, 7995844), (320, 3997922), (640, 1998961)]