2947220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 6652800

約数和(自身を除く): 3705580

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 149, 172, 215, 230, 298, 430, 460, 596, 745, 860, 989, 1490, 1978, 2980, 3427, 3956, 4945, 6407, 6854, 9890, 12814, 13708, 17135, 19780, 25628, 32035, 34270, 64070, 68540, 128140, 147361, 294722, 589444, 736805, 1473610, 2947220]

約数ペア:

[(1, 2947220), (2, 1473610), (4, 736805), (5, 589444), (10, 294722), (20, 147361), (23, 128140), (43, 68540), (46, 64070), (86, 34270), (92, 32035), (115, 25628), (149, 19780), (172, 17135), (215, 13708), (230, 12814), (298, 9890), (430, 6854), (460, 6407), (596, 4945), (745, 3956), (860, 3427), (989, 2980), (1490, 1978)]