253340

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:301

約数の個数: 24

約数和(自身を含む): 544320

約数和(自身を除く): 290980

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 239, 265, 478, 530, 956, 1060, 1195, 2390, 4780, 12667, 25334, 50668, 63335, 126670, 253340]

約数ペア:

[(1, 253340), (2, 126670), (4, 63335), (5, 50668), (10, 25334), (20, 12667), (53, 4780), (106, 2390), (212, 1195), (239, 1060), (265, 956), (478, 530)]