420020745

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{7481}}^1$

素因数の和:7705

約数の個数: 32

約数和(自身を含む): 711089280

約数和(自身を除く): 291068535

約数列:

[1, 3, 5, 15, 19, 57, 95, 197, 285, 591, 985, 2955, 3743, 7481, 11229, 18715, 22443, 37405, 56145, 112215, 142139, 426417, 710695, 1473757, 2132085, 4421271, 7368785, 22106355, 28001383, 84004149, 140006915, 420020745]

約数ペア:

[(1, 420020745), (3, 140006915), (5, 84004149), (15, 28001383), (19, 22106355), (57, 7368785), (95, 4421271), (197, 2132085), (285, 1473757), (591, 710695), (985, 426417), (2955, 142139), (3743, 112215), (7481, 56145), (11229, 37405), (18715, 22443)]