20154128405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{463}}^1\times {\mathrm{17659}}^1$

素因数の和:18173

約数の個数: 32

約数和(自身を含む): 26549337600

約数和(自身を除く): 6395209195

約数列:

[1, 5, 17, 29, 85, 145, 463, 493, 2315, 2465, 7871, 13427, 17659, 39355, 67135, 88295, 228259, 300203, 512111, 1141295, 1501015, 2560555, 8176117, 8705887, 40880585, 43529435, 138993989, 237107393, 694969945, 1185536965, 4030825681, 20154128405]

約数ペア:

[(1, 20154128405), (5, 4030825681), (17, 1185536965), (29, 694969945), (85, 237107393), (145, 138993989), (463, 43529435), (493, 40880585), (2315, 8705887), (2465, 8176117), (7871, 2560555), (13427, 1501015), (17659, 1141295), (39355, 512111), (67135, 300203), (88295, 228259)]