64320320

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:256

約数の個数: 112

約数和(自身を含む): 164592000

約数和(自身を除く): 100271680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 71, 76, 80, 95, 142, 149, 152, 160, 190, 284, 298, 304, 320, 355, 380, 568, 596, 608, 710, 745, 760, 1136, 1192, 1216, 1349, 1420, 1490, 1520, 2272, 2384, 2698, 2831, 2840, 2980, 3040, 4544, 4768, 5396, 5662, 5680, 5960, 6080, 6745, 9536, 10579, 10792, 11324, 11360, 11920, 13490, 14155, 21158, 21584, 22648, 22720, 23840, 26980, 28310, 42316, 43168, 45296, 47680, 52895, 53960, 56620, 84632, 86336, 90592, 105790, 107920, 113240, 169264, 181184, 201001, 211580, 215840, 226480, 338528, 402002, 423160, 431680, 452960, 677056, 804004, 846320, 905920, 1005005, 1608008, 1692640, 2010010, 3216016, 3385280, 4020020, 6432032, 8040040, 12864064, 16080080, 32160160, 64320320]

約数ペア:

[(1, 64320320), (2, 32160160), (4, 16080080), (5, 12864064), (8, 8040040), (10, 6432032), (16, 4020020), (19, 3385280), (20, 3216016), (32, 2010010), (38, 1692640), (40, 1608008), (64, 1005005), (71, 905920), (76, 846320), (80, 804004), (95, 677056), (142, 452960), (149, 431680), (152, 423160), (160, 402002), (190, 338528), (284, 226480), (298, 215840), (304, 211580), (320, 201001), (355, 181184), (380, 169264), (568, 113240), (596, 107920), (608, 105790), (710, 90592), (745, 86336), (760, 84632), (1136, 56620), (1192, 53960), (1216, 52895), (1349, 47680), (1420, 45296), (1490, 43168), (1520, 42316), (2272, 28310), (2384, 26980), (2698, 23840), (2831, 22720), (2840, 22648), (2980, 21584), (3040, 21158), (4544, 14155), (4768, 13490), (5396, 11920), (5662, 11360), (5680, 11324), (5960, 10792), (6080, 10579), (6745, 9536)]