17921781140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6451}}^1\times {\mathrm{8171}}^1$

素因数の和:14648

約数の個数: 48

約数和(自身を含む): 39860662464

約数和(自身を除く): 21938881324

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 6451, 8171, 12902, 16342, 25804, 32255, 32684, 40855, 64510, 81710, 109667, 129020, 138907, 163420, 219334, 277814, 438668, 548335, 555628, 694535, 1096670, 1389070, 2193340, 2778140, 52711121, 105422242, 210844484, 263555605, 527111210, 896089057, 1054222420, 1792178114, 3584356228, 4480445285, 8960890570, 17921781140]

約数ペア:

[(1, 17921781140), (2, 8960890570), (4, 4480445285), (5, 3584356228), (10, 1792178114), (17, 1054222420), (20, 896089057), (34, 527111210), (68, 263555605), (85, 210844484), (170, 105422242), (340, 52711121), (6451, 2778140), (8171, 2193340), (12902, 1389070), (16342, 1096670), (25804, 694535), (32255, 555628), (32684, 548335), (40855, 438668), (64510, 277814), (81710, 219334), (109667, 163420), (129020, 138907)]