213631520

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78541}}^1$

素因数の和:78573

約数の個数: 48

約数和(自身を含む): 534399768

約数和(自身を除く): 320768248

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 78541, 157082, 314164, 392705, 628328, 785410, 1256656, 1335197, 1570820, 2513312, 2670394, 3141640, 5340788, 6283280, 6675985, 10681576, 12566560, 13351970, 21363152, 26703940, 42726304, 53407880, 106815760, 213631520]

約数ペア:

[(1, 213631520), (2, 106815760), (4, 53407880), (5, 42726304), (8, 26703940), (10, 21363152), (16, 13351970), (17, 12566560), (20, 10681576), (32, 6675985), (34, 6283280), (40, 5340788), (68, 3141640), (80, 2670394), (85, 2513312), (136, 1570820), (160, 1335197), (170, 1256656), (272, 785410), (340, 628328), (544, 392705), (680, 314164), (1360, 157082), (2720, 78541)]