20762979040

素因数分解:

$2^5\times 5^1\times {\mathrm{241}}^1\times {\mathrm{421}}^1\times {\mathrm{1279}}^1$

素因数の和:1956

約数の個数: 96

約数和(自身を含む): 49411676160

約数和(自身を除く): 28648697120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 241, 421, 482, 842, 964, 1205, 1279, 1684, 1928, 2105, 2410, 2558, 3368, 3856, 4210, 4820, 5116, 6395, 6736, 7712, 8420, 9640, 10232, 12790, 13472, 16840, 19280, 20464, 25580, 33680, 38560, 40928, 51160, 67360, 101461, 102320, 202922, 204640, 308239, 405844, 507305, 538459, 616478, 811688, 1014610, 1076918, 1232956, 1541195, 1623376, 2029220, 2153836, 2465912, 2692295, 3082390, 3246752, 4058440, 4307672, 4931824, 5384590, 6164780, 8116880, 8615344, 9863648, 10769180, 12329560, 16233760, 17230688, 21538360, 24659120, 43076720, 49318240, 86153440, 129768619, 259537238, 519074476, 648843095, 1038148952, 1297686190, 2076297904, 2595372380, 4152595808, 5190744760, 10381489520, 20762979040]

約数ペア:

[(1, 20762979040), (2, 10381489520), (4, 5190744760), (5, 4152595808), (8, 2595372380), (10, 2076297904), (16, 1297686190), (20, 1038148952), (32, 648843095), (40, 519074476), (80, 259537238), (160, 129768619), (241, 86153440), (421, 49318240), (482, 43076720), (842, 24659120), (964, 21538360), (1205, 17230688), (1279, 16233760), (1684, 12329560), (1928, 10769180), (2105, 9863648), (2410, 8615344), (2558, 8116880), (3368, 6164780), (3856, 5384590), (4210, 4931824), (4820, 4307672), (5116, 4058440), (6395, 3246752), (6736, 3082390), (7712, 2692295), (8420, 2465912), (9640, 2153836), (10232, 2029220), (12790, 1623376), (13472, 1541195), (16840, 1232956), (19280, 1076918), (20464, 1014610), (25580, 811688), (33680, 616478), (38560, 538459), (40928, 507305), (51160, 405844), (67360, 308239), (101461, 204640), (102320, 202922)]