20846080

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{479}}^1$

素因数の和:519

約数の個数: 80

約数和(自身を含む): 53032320

約数和(自身を除く): 32186240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 479, 512, 544, 640, 680, 958, 1088, 1280, 1360, 1916, 2176, 2395, 2560, 2720, 3832, 4352, 4790, 5440, 7664, 8143, 8704, 9580, 10880, 15328, 16286, 19160, 21760, 30656, 32572, 38320, 40715, 43520, 61312, 65144, 76640, 81430, 122624, 130288, 153280, 162860, 245248, 260576, 306560, 325720, 521152, 613120, 651440, 1042304, 1226240, 1302880, 2084608, 2605760, 4169216, 5211520, 10423040, 20846080]

約数ペア:

[(1, 20846080), (2, 10423040), (4, 5211520), (5, 4169216), (8, 2605760), (10, 2084608), (16, 1302880), (17, 1226240), (20, 1042304), (32, 651440), (34, 613120), (40, 521152), (64, 325720), (68, 306560), (80, 260576), (85, 245248), (128, 162860), (136, 153280), (160, 130288), (170, 122624), (256, 81430), (272, 76640), (320, 65144), (340, 61312), (479, 43520), (512, 40715), (544, 38320), (640, 32572), (680, 30656), (958, 21760), (1088, 19160), (1280, 16286), (1360, 15328), (1916, 10880), (2176, 9580), (2395, 8704), (2560, 8143), (2720, 7664), (3832, 5440), (4352, 4790)]