489999970

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{457}}^1\times {\mathrm{599}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 890352000

約数和(自身を除く): 400352030

約数列:

[1, 2, 5, 10, 179, 358, 457, 599, 895, 914, 1198, 1790, 2285, 2995, 4570, 5990, 81803, 107221, 163606, 214442, 273743, 409015, 536105, 547486, 818030, 1072210, 1368715, 2737430, 48999997, 97999994, 244999985, 489999970]

約数ペア:

[(1, 489999970), (2, 244999985), (5, 97999994), (10, 48999997), (179, 2737430), (358, 1368715), (457, 1072210), (599, 818030), (895, 547486), (914, 536105), (1198, 409015), (1790, 273743), (2285, 214442), (2995, 163606), (4570, 107221), (5990, 81803)]