81969800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 192

約数和(自身を含む): 229003200

約数和(自身を除く): 147033400

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 25, 37, 38, 40, 44, 50, 53, 55, 74, 76, 88, 95, 100, 106, 110, 148, 152, 185, 190, 200, 209, 212, 220, 265, 275, 296, 370, 380, 407, 418, 424, 440, 475, 530, 550, 583, 703, 740, 760, 814, 836, 925, 950, 1007, 1045, 1060, 1100, 1166, 1325, 1406, 1480, 1628, 1672, 1850, 1900, 1961, 2014, 2035, 2090, 2120, 2200, 2332, 2650, 2812, 2915, 3256, 3515, 3700, 3800, 3922, 4028, 4070, 4180, 4664, 5035, 5225, 5300, 5624, 5830, 7030, 7400, 7733, 7844, 8056, 8140, 8360, 9805, 10070, 10175, 10450, 10600, 11077, 11660, 14060, 14575, 15466, 15688, 16280, 17575, 19610, 20140, 20350, 20900, 21571, 22154, 23320, 25175, 28120, 29150, 30932, 35150, 37259, 38665, 39220, 40280, 40700, 41800, 43142, 44308, 49025, 50350, 55385, 58300, 61864, 70300, 74518, 77330, 78440, 81400, 86284, 88616, 98050, 100700, 107855, 110770, 116600, 140600, 149036, 154660, 172568, 186295, 193325, 196100, 201400, 215710, 221540, 276925, 298072, 309320, 372590, 386650, 392200, 409849, 431420, 443080, 539275, 553850, 745180, 773300, 819698, 862840, 931475, 1078550, 1107700, 1490360, 1546600, 1639396, 1862950, 2049245, 2157100, 2215400, 3278792, 3725900, 4098490, 4314200, 7451800, 8196980, 10246225, 16393960, 20492450, 40984900, 81969800]

約数ペア:

[(1, 81969800), (2, 40984900), (4, 20492450), (5, 16393960), (8, 10246225), (10, 8196980), (11, 7451800), (19, 4314200), (20, 4098490), (22, 3725900), (25, 3278792), (37, 2215400), (38, 2157100), (40, 2049245), (44, 1862950), (50, 1639396), (53, 1546600), (55, 1490360), (74, 1107700), (76, 1078550), (88, 931475), (95, 862840), (100, 819698), (106, 773300), (110, 745180), (148, 553850), (152, 539275), (185, 443080), (190, 431420), (200, 409849), (209, 392200), (212, 386650), (220, 372590), (265, 309320), (275, 298072), (296, 276925), (370, 221540), (380, 215710), (407, 201400), (418, 196100), (424, 193325), (440, 186295), (475, 172568), (530, 154660), (550, 149036), (583, 140600), (703, 116600), (740, 110770), (760, 107855), (814, 100700), (836, 98050), (925, 88616), (950, 86284), (1007, 81400), (1045, 78440), (1060, 77330), (1100, 74518), (1166, 70300), (1325, 61864), (1406, 58300), (1480, 55385), (1628, 50350), (1672, 49025), (1850, 44308), (1900, 43142), (1961, 41800), (2014, 40700), (2035, 40280), (2090, 39220), (2120, 38665), (2200, 37259), (2332, 35150), (2650, 30932), (2812, 29150), (2915, 28120), (3256, 25175), (3515, 23320), (3700, 22154), (3800, 21571), (3922, 20900), (4028, 20350), (4070, 20140), (4180, 19610), (4664, 17575), (5035, 16280), (5225, 15688), (5300, 15466), (5624, 14575), (5830, 14060), (7030, 11660), (7400, 11077), (7733, 10600), (7844, 10450), (8056, 10175), (8140, 10070), (8360, 9805)]