780078

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:228

約数の個数: 32

約数和(自身を含む): 1715616

約数和(自身を除く): 935538

約数列:

[1, 2, 3, 6, 13, 26, 39, 73, 78, 137, 146, 219, 274, 411, 438, 822, 949, 1781, 1898, 2847, 3562, 5343, 5694, 10001, 10686, 20002, 30003, 60006, 130013, 260026, 390039, 780078]

約数ペア:

[(1, 780078), (2, 390039), (3, 260026), (6, 130013), (13, 60006), (26, 30003), (39, 20002), (73, 10686), (78, 10001), (137, 5694), (146, 5343), (219, 3562), (274, 2847), (411, 1898), (438, 1781), (822, 949)]