20626984

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 27273176

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 47, 56, 68, 94, 119, 136, 188, 238, 329, 376, 461, 476, 658, 799, 922, 952, 1316, 1598, 1844, 2632, 3196, 3227, 3688, 5593, 6392, 6454, 7837, 11186, 12908, 15674, 21667, 22372, 25816, 31348, 43334, 44744, 54859, 62696, 86668, 109718, 151669, 173336, 219436, 303338, 368339, 438872, 606676, 736678, 1213352, 1473356, 2578373, 2946712, 5156746, 10313492, 20626984]

約数ペア:

[(1, 20626984), (2, 10313492), (4, 5156746), (7, 2946712), (8, 2578373), (14, 1473356), (17, 1213352), (28, 736678), (34, 606676), (47, 438872), (56, 368339), (68, 303338), (94, 219436), (119, 173336), (136, 151669), (188, 109718), (238, 86668), (329, 62696), (376, 54859), (461, 44744), (476, 43334), (658, 31348), (799, 25816), (922, 22372), (952, 21667), (1316, 15674), (1598, 12908), (1844, 11186), (2632, 7837), (3196, 6454), (3227, 6392), (3688, 5593)]