12780730

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 24442560

約数和(自身を除く): 11661830

約数列:

[1, 2, 5, 10, 19, 38, 95, 137, 190, 274, 491, 685, 982, 1370, 2455, 2603, 4910, 5206, 9329, 13015, 18658, 26030, 46645, 67267, 93290, 134534, 336335, 672670, 1278073, 2556146, 6390365, 12780730]

約数ペア:

[(1, 12780730), (2, 6390365), (5, 2556146), (10, 1278073), (19, 672670), (38, 336335), (95, 134534), (137, 93290), (190, 67267), (274, 46645), (491, 26030), (685, 18658), (982, 13015), (1370, 9329), (2455, 5206), (2603, 4910)]