218915800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 565175880

約数和(自身を除く): 346260080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 31, 34, 40, 50, 62, 67, 68, 85, 100, 124, 134, 136, 155, 170, 200, 248, 268, 310, 335, 340, 425, 527, 536, 620, 670, 680, 775, 850, 961, 1054, 1139, 1240, 1340, 1550, 1675, 1700, 1922, 2077, 2108, 2278, 2635, 2680, 3100, 3350, 3400, 3844, 4154, 4216, 4556, 4805, 5270, 5695, 6200, 6700, 7688, 8308, 9112, 9610, 10385, 10540, 11390, 13175, 13400, 16337, 16616, 19220, 20770, 21080, 22780, 24025, 26350, 28475, 32674, 35309, 38440, 41540, 45560, 48050, 51925, 52700, 56950, 64387, 65348, 70618, 81685, 83080, 96100, 103850, 105400, 113900, 128774, 130696, 141236, 163370, 176545, 192200, 207700, 227800, 257548, 282472, 321935, 326740, 353090, 408425, 415400, 515096, 643870, 653480, 706180, 816850, 882725, 1094579, 1287740, 1412360, 1609675, 1633700, 1765450, 2189158, 2575480, 3219350, 3267400, 3530900, 4378316, 5472895, 6438700, 7061800, 8756632, 10945790, 12877400, 21891580, 27364475, 43783160, 54728950, 109457900, 218915800]

約数ペア:

[(1, 218915800), (2, 109457900), (4, 54728950), (5, 43783160), (8, 27364475), (10, 21891580), (17, 12877400), (20, 10945790), (25, 8756632), (31, 7061800), (34, 6438700), (40, 5472895), (50, 4378316), (62, 3530900), (67, 3267400), (68, 3219350), (85, 2575480), (100, 2189158), (124, 1765450), (134, 1633700), (136, 1609675), (155, 1412360), (170, 1287740), (200, 1094579), (248, 882725), (268, 816850), (310, 706180), (335, 653480), (340, 643870), (425, 515096), (527, 415400), (536, 408425), (620, 353090), (670, 326740), (680, 321935), (775, 282472), (850, 257548), (961, 227800), (1054, 207700), (1139, 192200), (1240, 176545), (1340, 163370), (1550, 141236), (1675, 130696), (1700, 128774), (1922, 113900), (2077, 105400), (2108, 103850), (2278, 96100), (2635, 83080), (2680, 81685), (3100, 70618), (3350, 65348), (3400, 64387), (3844, 56950), (4154, 52700), (4216, 51925), (4556, 48050), (4805, 45560), (5270, 41540), (5695, 38440), (6200, 35309), (6700, 32674), (7688, 28475), (8308, 26350), (9112, 24025), (9610, 22780), (10385, 21080), (10540, 20770), (11390, 19220), (13175, 16616), (13400, 16337)]