120766820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{457}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 259070448

約数和(自身を除く): 138303628

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 181, 292, 362, 365, 457, 724, 730, 905, 914, 1460, 1810, 1828, 2285, 3620, 4570, 9140, 13213, 26426, 33361, 52852, 66065, 66722, 82717, 132130, 133444, 165434, 166805, 264260, 330868, 333610, 413585, 667220, 827170, 1654340, 6038341, 12076682, 24153364, 30191705, 60383410, 120766820]

約数ペア:

[(1, 120766820), (2, 60383410), (4, 30191705), (5, 24153364), (10, 12076682), (20, 6038341), (73, 1654340), (146, 827170), (181, 667220), (292, 413585), (362, 333610), (365, 330868), (457, 264260), (724, 166805), (730, 165434), (905, 133444), (914, 132130), (1460, 82717), (1810, 66722), (1828, 66065), (2285, 52852), (3620, 33361), (4570, 26426), (9140, 13213)]