11821940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1109}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 27412560

約数和(自身を除く): 15590620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1109, 2132, 2218, 2665, 4436, 5330, 5545, 10660, 11090, 14417, 22180, 28834, 45469, 57668, 72085, 90938, 144170, 181876, 227345, 288340, 454690, 591097, 909380, 1182194, 2364388, 2955485, 5910970, 11821940]

約数ペア:

[(1, 11821940), (2, 5910970), (4, 2955485), (5, 2364388), (10, 1182194), (13, 909380), (20, 591097), (26, 454690), (41, 288340), (52, 227345), (65, 181876), (82, 144170), (130, 90938), (164, 72085), (205, 57668), (260, 45469), (410, 28834), (533, 22180), (820, 14417), (1066, 11090), (1109, 10660), (2132, 5545), (2218, 5330), (2665, 4436)]