20376288

素因数分解:

$2^5\times 3^2\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:664

約数の個数: 72

約数和(自身を含む): 58476600

約数和(自身を除く): 38100312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 139, 144, 278, 288, 417, 509, 556, 834, 1018, 1112, 1251, 1527, 1668, 2036, 2224, 2502, 3054, 3336, 4072, 4448, 4581, 5004, 6108, 6672, 8144, 9162, 10008, 12216, 13344, 16288, 18324, 20016, 24432, 36648, 40032, 48864, 70751, 73296, 141502, 146592, 212253, 283004, 424506, 566008, 636759, 849012, 1132016, 1273518, 1698024, 2264032, 2547036, 3396048, 5094072, 6792096, 10188144, 20376288]

約数ペア:

[(1, 20376288), (2, 10188144), (3, 6792096), (4, 5094072), (6, 3396048), (8, 2547036), (9, 2264032), (12, 1698024), (16, 1273518), (18, 1132016), (24, 849012), (32, 636759), (36, 566008), (48, 424506), (72, 283004), (96, 212253), (139, 146592), (144, 141502), (278, 73296), (288, 70751), (417, 48864), (509, 40032), (556, 36648), (834, 24432), (1018, 20016), (1112, 18324), (1251, 16288), (1527, 13344), (1668, 12216), (2036, 10008), (2224, 9162), (2502, 8144), (3054, 6672), (3336, 6108), (4072, 5004), (4448, 4581)]