215680480

素因数分解:

$2^5\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:356

約数の個数: 96

約数和(自身を含む): 523908000

約数和(自身を除く): 308227520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 83, 109, 149, 160, 166, 218, 298, 332, 415, 436, 545, 596, 664, 745, 830, 872, 1090, 1192, 1328, 1490, 1660, 1744, 2180, 2384, 2656, 2980, 3320, 3488, 4360, 4768, 5960, 6640, 8720, 9047, 11920, 12367, 13280, 16241, 17440, 18094, 23840, 24734, 32482, 36188, 45235, 49468, 61835, 64964, 72376, 81205, 90470, 98936, 123670, 129928, 144752, 162410, 180940, 197872, 247340, 259856, 289504, 324820, 361880, 395744, 494680, 519712, 649640, 723760, 989360, 1299280, 1348003, 1447520, 1978720, 2598560, 2696006, 5392012, 6740015, 10784024, 13480030, 21568048, 26960060, 43136096, 53920120, 107840240, 215680480]

約数ペア:

[(1, 215680480), (2, 107840240), (4, 53920120), (5, 43136096), (8, 26960060), (10, 21568048), (16, 13480030), (20, 10784024), (32, 6740015), (40, 5392012), (80, 2696006), (83, 2598560), (109, 1978720), (149, 1447520), (160, 1348003), (166, 1299280), (218, 989360), (298, 723760), (332, 649640), (415, 519712), (436, 494680), (545, 395744), (596, 361880), (664, 324820), (745, 289504), (830, 259856), (872, 247340), (1090, 197872), (1192, 180940), (1328, 162410), (1490, 144752), (1660, 129928), (1744, 123670), (2180, 98936), (2384, 90470), (2656, 81205), (2980, 72376), (3320, 64964), (3488, 61835), (4360, 49468), (4768, 45235), (5960, 36188), (6640, 32482), (8720, 24734), (9047, 23840), (11920, 18094), (12367, 17440), (13280, 16241)]