638923008

素因数分解:

$2^8\times 3^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:360

約数の個数: 144

約数和(自身を含む): 1767782016

約数和(自身を除く): 1128859008

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 82, 96, 103, 123, 128, 164, 192, 197, 206, 246, 256, 309, 328, 384, 394, 412, 492, 591, 618, 656, 768, 788, 824, 984, 1182, 1236, 1312, 1576, 1648, 1968, 2364, 2472, 2624, 3152, 3296, 3936, 4223, 4728, 4944, 5248, 6304, 6592, 7872, 8077, 8446, 9456, 9888, 10496, 12608, 12669, 13184, 15744, 16154, 16892, 18912, 19776, 20291, 24231, 25216, 25338, 26368, 31488, 32308, 33784, 37824, 39552, 40582, 48462, 50432, 50676, 60873, 64616, 67568, 75648, 79104, 81164, 96924, 101352, 121746, 129232, 135136, 151296, 162328, 193848, 202704, 243492, 258464, 270272, 324656, 387696, 405408, 486984, 516928, 540544, 649312, 775392, 810816, 831931, 973968, 1033856, 1081088, 1298624, 1550784, 1621632, 1663862, 1947936, 2067712, 2495793, 2597248, 3101568, 3243264, 3327724, 3895872, 4991586, 5194496, 6203136, 6655448, 7791744, 9983172, 13310896, 15583488, 19966344, 26621792, 39932688, 53243584, 79865376, 106487168, 159730752, 212974336, 319461504, 638923008]

約数ペア:

[(1, 638923008), (2, 319461504), (3, 212974336), (4, 159730752), (6, 106487168), (8, 79865376), (12, 53243584), (16, 39932688), (24, 26621792), (32, 19966344), (41, 15583488), (48, 13310896), (64, 9983172), (82, 7791744), (96, 6655448), (103, 6203136), (123, 5194496), (128, 4991586), (164, 3895872), (192, 3327724), (197, 3243264), (206, 3101568), (246, 2597248), (256, 2495793), (309, 2067712), (328, 1947936), (384, 1663862), (394, 1621632), (412, 1550784), (492, 1298624), (591, 1081088), (618, 1033856), (656, 973968), (768, 831931), (788, 810816), (824, 775392), (984, 649312), (1182, 540544), (1236, 516928), (1312, 486984), (1576, 405408), (1648, 387696), (1968, 324656), (2364, 270272), (2472, 258464), (2624, 243492), (3152, 202704), (3296, 193848), (3936, 162328), (4223, 151296), (4728, 135136), (4944, 129232), (5248, 121746), (6304, 101352), (6592, 96924), (7872, 81164), (8077, 79104), (8446, 75648), (9456, 67568), (9888, 64616), (10496, 60873), (12608, 50676), (12669, 50432), (13184, 48462), (15744, 40582), (16154, 39552), (16892, 37824), (18912, 33784), (19776, 32308), (20291, 31488), (24231, 26368), (25216, 25338)]