64985440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:384

約数の個数: 96

約数和(自身を含む): 167227200

約数和(自身を除く): 102241760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 157, 160, 199, 208, 260, 314, 398, 416, 520, 628, 785, 796, 995, 1040, 1256, 1570, 1592, 1990, 2041, 2080, 2512, 2587, 3140, 3184, 3980, 4082, 5024, 5174, 6280, 6368, 7960, 8164, 10205, 10348, 12560, 12935, 15920, 16328, 20410, 20696, 25120, 25870, 31243, 31840, 32656, 40820, 41392, 51740, 62486, 65312, 81640, 82784, 103480, 124972, 156215, 163280, 206960, 249944, 312430, 326560, 406159, 413920, 499888, 624860, 812318, 999776, 1249720, 1624636, 2030795, 2499440, 3249272, 4061590, 4998880, 6498544, 8123180, 12997088, 16246360, 32492720, 64985440]

約数ペア:

[(1, 64985440), (2, 32492720), (4, 16246360), (5, 12997088), (8, 8123180), (10, 6498544), (13, 4998880), (16, 4061590), (20, 3249272), (26, 2499440), (32, 2030795), (40, 1624636), (52, 1249720), (65, 999776), (80, 812318), (104, 624860), (130, 499888), (157, 413920), (160, 406159), (199, 326560), (208, 312430), (260, 249944), (314, 206960), (398, 163280), (416, 156215), (520, 124972), (628, 103480), (785, 82784), (796, 81640), (995, 65312), (1040, 62486), (1256, 51740), (1570, 41392), (1592, 40820), (1990, 32656), (2041, 31840), (2080, 31243), (2512, 25870), (2587, 25120), (3140, 20696), (3184, 20410), (3980, 16328), (4082, 15920), (5024, 12935), (5174, 12560), (6280, 10348), (6368, 10205), (7960, 8164)]