258994375

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 346389120

約数和(自身を除く): 87394745

約数列:

[1, 5, 23, 25, 43, 115, 125, 215, 419, 575, 625, 989, 1075, 2095, 2875, 4945, 5375, 9637, 10475, 14375, 18017, 24725, 26875, 48185, 52375, 90085, 123625, 240925, 261875, 414391, 450425, 618125, 1204625, 2071955, 2252125, 6023125, 10359775, 11260625, 51798875, 258994375]

約数ペア:

[(1, 258994375), (5, 51798875), (23, 11260625), (25, 10359775), (43, 6023125), (115, 2252125), (125, 2071955), (215, 1204625), (419, 618125), (575, 450425), (625, 414391), (989, 261875), (1075, 240925), (2095, 123625), (2875, 90085), (4945, 52375), (5375, 48185), (9637, 26875), (10475, 24725), (14375, 18017)]