20556154960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{226789}}^1$

素因数の和:226916

約数の個数: 80

約数和(自身を含む): 52644309120

約数和(自身を除く): 32088154160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 103, 110, 176, 206, 220, 412, 440, 515, 824, 880, 1030, 1133, 1648, 2060, 2266, 4120, 4532, 5665, 8240, 9064, 11330, 18128, 22660, 45320, 90640, 226789, 453578, 907156, 1133945, 1814312, 2267890, 2494679, 3628624, 4535780, 4989358, 9071560, 9978716, 12473395, 18143120, 19957432, 23359267, 24946790, 39914864, 46718534, 49893580, 93437068, 99787160, 116796335, 186874136, 199574320, 233592670, 256951937, 373748272, 467185340, 513903874, 934370680, 1027807748, 1284759685, 1868741360, 2055615496, 2569519370, 4111230992, 5139038740, 10278077480, 20556154960]

約数ペア:

[(1, 20556154960), (2, 10278077480), (4, 5139038740), (5, 4111230992), (8, 2569519370), (10, 2055615496), (11, 1868741360), (16, 1284759685), (20, 1027807748), (22, 934370680), (40, 513903874), (44, 467185340), (55, 373748272), (80, 256951937), (88, 233592670), (103, 199574320), (110, 186874136), (176, 116796335), (206, 99787160), (220, 93437068), (412, 49893580), (440, 46718534), (515, 39914864), (824, 24946790), (880, 23359267), (1030, 19957432), (1133, 18143120), (1648, 12473395), (2060, 9978716), (2266, 9071560), (4120, 4989358), (4532, 4535780), (5665, 3628624), (8240, 2494679), (9064, 2267890), (11330, 1814312), (18128, 1133945), (22660, 907156), (45320, 453578), (90640, 226789)]