20650750

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 42254784

約数和(自身を除く): 21604034

約数列:

[1, 2, 5, 10, 17, 25, 34, 43, 50, 85, 86, 113, 125, 170, 215, 226, 250, 425, 430, 565, 731, 850, 1075, 1130, 1462, 1921, 2125, 2150, 2825, 3655, 3842, 4250, 4859, 5375, 5650, 7310, 9605, 9718, 10750, 14125, 18275, 19210, 24295, 28250, 36550, 48025, 48590, 82603, 91375, 96050, 121475, 165206, 182750, 240125, 242950, 413015, 480250, 607375, 826030, 1214750, 2065075, 4130150, 10325375, 20650750]

約数ペア:

[(1, 20650750), (2, 10325375), (5, 4130150), (10, 2065075), (17, 1214750), (25, 826030), (34, 607375), (43, 480250), (50, 413015), (85, 242950), (86, 240125), (113, 182750), (125, 165206), (170, 121475), (215, 96050), (226, 91375), (250, 82603), (425, 48590), (430, 48025), (565, 36550), (731, 28250), (850, 24295), (1075, 19210), (1130, 18275), (1462, 14125), (1921, 10750), (2125, 9718), (2150, 9605), (2825, 7310), (3655, 5650), (3842, 5375), (4250, 4859)]