204280960

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:646

約数の個数: 128

約数和(自身を含む): 539098560

約数和(自身を除く): 334817600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 64, 65, 80, 86, 104, 128, 130, 160, 172, 208, 215, 260, 320, 344, 416, 430, 520, 559, 571, 640, 688, 832, 860, 1040, 1118, 1142, 1376, 1664, 1720, 2080, 2236, 2284, 2752, 2795, 2855, 3440, 4160, 4472, 4568, 5504, 5590, 5710, 6880, 7423, 8320, 8944, 9136, 11180, 11420, 13760, 14846, 17888, 18272, 22360, 22840, 24553, 27520, 29692, 35776, 36544, 37115, 44720, 45680, 49106, 59384, 71552, 73088, 74230, 89440, 91360, 98212, 118768, 122765, 148460, 178880, 182720, 196424, 237536, 245530, 296920, 319189, 357760, 365440, 392848, 475072, 491060, 593840, 638378, 785696, 950144, 982120, 1187680, 1276756, 1571392, 1595945, 1964240, 2375360, 2553512, 3142784, 3191890, 3928480, 4750720, 5107024, 6383780, 7856960, 10214048, 12767560, 15713920, 20428096, 25535120, 40856192, 51070240, 102140480, 204280960]

約数ペア:

[(1, 204280960), (2, 102140480), (4, 51070240), (5, 40856192), (8, 25535120), (10, 20428096), (13, 15713920), (16, 12767560), (20, 10214048), (26, 7856960), (32, 6383780), (40, 5107024), (43, 4750720), (52, 3928480), (64, 3191890), (65, 3142784), (80, 2553512), (86, 2375360), (104, 1964240), (128, 1595945), (130, 1571392), (160, 1276756), (172, 1187680), (208, 982120), (215, 950144), (260, 785696), (320, 638378), (344, 593840), (416, 491060), (430, 475072), (520, 392848), (559, 365440), (571, 357760), (640, 319189), (688, 296920), (832, 245530), (860, 237536), (1040, 196424), (1118, 182720), (1142, 178880), (1376, 148460), (1664, 122765), (1720, 118768), (2080, 98212), (2236, 91360), (2284, 89440), (2752, 74230), (2795, 73088), (2855, 71552), (3440, 59384), (4160, 49106), (4472, 45680), (4568, 44720), (5504, 37115), (5590, 36544), (5710, 35776), (6880, 29692), (7423, 27520), (8320, 24553), (8944, 22840), (9136, 22360), (11180, 18272), (11420, 17888), (13760, 14846)]