20409997105

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{503}}^1\times {\mathrm{9007}}^1$

素因数の和:9585

約数の個数: 32

約数和(自身を含む): 26477466624

約数和(自身を除く): 6067469519

約数列:

[1, 5, 17, 53, 85, 265, 503, 901, 2515, 4505, 8551, 9007, 26659, 42755, 45035, 133295, 153119, 453203, 477371, 765595, 2266015, 2386855, 4530521, 8115307, 22652605, 40576535, 77018857, 240117613, 385094285, 1200588065, 4081999421, 20409997105]

約数ペア:

[(1, 20409997105), (5, 4081999421), (17, 1200588065), (53, 385094285), (85, 240117613), (265, 77018857), (503, 40576535), (901, 22652605), (2515, 8115307), (4505, 4530521), (8551, 2386855), (9007, 2266015), (26659, 765595), (42755, 477371), (45035, 453203), (133295, 153119)]