66381440

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:194

約数の個数: 128

約数和(自身を含む): 171849600

約数和(自身を除く): 105468160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 53, 64, 76, 80, 95, 103, 106, 128, 152, 160, 190, 206, 212, 265, 304, 320, 380, 412, 424, 515, 530, 608, 640, 760, 824, 848, 1007, 1030, 1060, 1216, 1520, 1648, 1696, 1957, 2014, 2060, 2120, 2432, 3040, 3296, 3392, 3914, 4028, 4120, 4240, 5035, 5459, 6080, 6592, 6784, 7828, 8056, 8240, 8480, 9785, 10070, 10918, 12160, 13184, 15656, 16112, 16480, 16960, 19570, 20140, 21836, 27295, 31312, 32224, 32960, 33920, 39140, 40280, 43672, 54590, 62624, 64448, 65920, 78280, 80560, 87344, 103721, 109180, 125248, 128896, 156560, 161120, 174688, 207442, 218360, 250496, 313120, 322240, 349376, 414884, 436720, 518605, 626240, 644480, 698752, 829768, 873440, 1037210, 1252480, 1659536, 1746880, 2074420, 3319072, 3493760, 4148840, 6638144, 8297680, 13276288, 16595360, 33190720, 66381440]

約数ペア:

[(1, 66381440), (2, 33190720), (4, 16595360), (5, 13276288), (8, 8297680), (10, 6638144), (16, 4148840), (19, 3493760), (20, 3319072), (32, 2074420), (38, 1746880), (40, 1659536), (53, 1252480), (64, 1037210), (76, 873440), (80, 829768), (95, 698752), (103, 644480), (106, 626240), (128, 518605), (152, 436720), (160, 414884), (190, 349376), (206, 322240), (212, 313120), (265, 250496), (304, 218360), (320, 207442), (380, 174688), (412, 161120), (424, 156560), (515, 128896), (530, 125248), (608, 109180), (640, 103721), (760, 87344), (824, 80560), (848, 78280), (1007, 65920), (1030, 64448), (1060, 62624), (1216, 54590), (1520, 43672), (1648, 40280), (1696, 39140), (1957, 33920), (2014, 32960), (2060, 32224), (2120, 31312), (2432, 27295), (3040, 21836), (3296, 20140), (3392, 19570), (3914, 16960), (4028, 16480), (4120, 16112), (4240, 15656), (5035, 13184), (5459, 12160), (6080, 10918), (6592, 10070), (6784, 9785), (7828, 8480), (8056, 8240)]