20316564

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{373}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 55135080

約数和(自身を除く): 34818516

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 89, 102, 153, 178, 204, 267, 306, 356, 373, 534, 612, 746, 801, 1068, 1119, 1492, 1513, 1602, 2238, 3026, 3204, 3357, 4476, 4539, 6052, 6341, 6714, 9078, 12682, 13428, 13617, 18156, 19023, 25364, 27234, 33197, 38046, 54468, 57069, 66394, 76092, 99591, 114138, 132788, 199182, 228276, 298773, 398364, 564349, 597546, 1128698, 1195092, 1693047, 2257396, 3386094, 5079141, 6772188, 10158282, 20316564]

約数ペア:

[(1, 20316564), (2, 10158282), (3, 6772188), (4, 5079141), (6, 3386094), (9, 2257396), (12, 1693047), (17, 1195092), (18, 1128698), (34, 597546), (36, 564349), (51, 398364), (68, 298773), (89, 228276), (102, 199182), (153, 132788), (178, 114138), (204, 99591), (267, 76092), (306, 66394), (356, 57069), (373, 54468), (534, 38046), (612, 33197), (746, 27234), (801, 25364), (1068, 19023), (1119, 18156), (1492, 13617), (1513, 13428), (1602, 12682), (2238, 9078), (3026, 6714), (3204, 6341), (3357, 6052), (4476, 4539)]