199778920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1039}}^1$

素因数の和:1103

約数の個数: 128

約数和(自身を含む): 539136000

約数和(自身を除く): 339357080

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 23, 38, 40, 44, 46, 55, 76, 88, 92, 95, 110, 115, 152, 184, 190, 209, 220, 230, 253, 380, 418, 437, 440, 460, 506, 760, 836, 874, 920, 1012, 1039, 1045, 1265, 1672, 1748, 2024, 2078, 2090, 2185, 2530, 3496, 4156, 4180, 4370, 4807, 5060, 5195, 8312, 8360, 8740, 9614, 10120, 10390, 11429, 17480, 19228, 19741, 20780, 22858, 23897, 24035, 38456, 39482, 41560, 45716, 47794, 48070, 57145, 78964, 91432, 95588, 96140, 98705, 114290, 119485, 157928, 191176, 192280, 197410, 217151, 228580, 238970, 262867, 394820, 434302, 454043, 457160, 477940, 525734, 789640, 868604, 908086, 955880, 1051468, 1085755, 1314335, 1737208, 1816172, 2102936, 2171510, 2270215, 2628670, 3632344, 4343020, 4540430, 4994473, 5257340, 8686040, 9080860, 9988946, 10514680, 18161720, 19977892, 24972365, 39955784, 49944730, 99889460, 199778920]

約数ペア:

[(1, 199778920), (2, 99889460), (4, 49944730), (5, 39955784), (8, 24972365), (10, 19977892), (11, 18161720), (19, 10514680), (20, 9988946), (22, 9080860), (23, 8686040), (38, 5257340), (40, 4994473), (44, 4540430), (46, 4343020), (55, 3632344), (76, 2628670), (88, 2270215), (92, 2171510), (95, 2102936), (110, 1816172), (115, 1737208), (152, 1314335), (184, 1085755), (190, 1051468), (209, 955880), (220, 908086), (230, 868604), (253, 789640), (380, 525734), (418, 477940), (437, 457160), (440, 454043), (460, 434302), (506, 394820), (760, 262867), (836, 238970), (874, 228580), (920, 217151), (1012, 197410), (1039, 192280), (1045, 191176), (1265, 157928), (1672, 119485), (1748, 114290), (2024, 98705), (2078, 96140), (2090, 95588), (2185, 91432), (2530, 78964), (3496, 57145), (4156, 48070), (4180, 47794), (4370, 45716), (4807, 41560), (5060, 39482), (5195, 38456), (8312, 24035), (8360, 23897), (8740, 22858), (9614, 20780), (10120, 19741), (10390, 19228), (11429, 17480)]