19945790

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 36923040

約数和(自身を除く): 16977250

約数列:

[1, 2, 5, 10, 73, 89, 146, 178, 307, 365, 445, 614, 730, 890, 1535, 3070, 6497, 12994, 22411, 27323, 32485, 44822, 54646, 64970, 112055, 136615, 224110, 273230, 1994579, 3989158, 9972895, 19945790]

約数ペア:

[(1, 19945790), (2, 9972895), (5, 3989158), (10, 1994579), (73, 273230), (89, 224110), (146, 136615), (178, 112055), (307, 64970), (365, 54646), (445, 44822), (614, 32485), (730, 27323), (890, 22411), (1535, 12994), (3070, 6497)]