161968180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 411844608

約数和(自身を除く): 249876428

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 31, 34, 44, 55, 62, 68, 85, 110, 121, 124, 127, 155, 170, 187, 220, 242, 254, 310, 340, 341, 374, 484, 508, 527, 605, 620, 635, 682, 748, 935, 1054, 1210, 1270, 1364, 1397, 1705, 1870, 2057, 2108, 2159, 2420, 2540, 2635, 2794, 3410, 3740, 3751, 3937, 4114, 4318, 5270, 5588, 5797, 6820, 6985, 7502, 7874, 8228, 8636, 10285, 10540, 10795, 11594, 13970, 15004, 15367, 15748, 18755, 19685, 20570, 21590, 23188, 23749, 27940, 28985, 30734, 37510, 39370, 41140, 43180, 43307, 47498, 57970, 61468, 63767, 66929, 75020, 76835, 78740, 86614, 94996, 115940, 118745, 127534, 133858, 153670, 173228, 216535, 237490, 255068, 261239, 267716, 307340, 318835, 334645, 433070, 474980, 476377, 522478, 637670, 669290, 736219, 866140, 952754, 1044956, 1275340, 1306195, 1338580, 1472438, 1905508, 2381885, 2612390, 2944876, 3681095, 4763770, 5224780, 7362190, 8098409, 9527540, 14724380, 16196818, 32393636, 40492045, 80984090, 161968180]

約数ペア:

[(1, 161968180), (2, 80984090), (4, 40492045), (5, 32393636), (10, 16196818), (11, 14724380), (17, 9527540), (20, 8098409), (22, 7362190), (31, 5224780), (34, 4763770), (44, 3681095), (55, 2944876), (62, 2612390), (68, 2381885), (85, 1905508), (110, 1472438), (121, 1338580), (124, 1306195), (127, 1275340), (155, 1044956), (170, 952754), (187, 866140), (220, 736219), (242, 669290), (254, 637670), (310, 522478), (340, 476377), (341, 474980), (374, 433070), (484, 334645), (508, 318835), (527, 307340), (605, 267716), (620, 261239), (635, 255068), (682, 237490), (748, 216535), (935, 173228), (1054, 153670), (1210, 133858), (1270, 127534), (1364, 118745), (1397, 115940), (1705, 94996), (1870, 86614), (2057, 78740), (2108, 76835), (2159, 75020), (2420, 66929), (2540, 63767), (2635, 61468), (2794, 57970), (3410, 47498), (3740, 43307), (3751, 43180), (3937, 41140), (4114, 39370), (4318, 37510), (5270, 30734), (5588, 28985), (5797, 27940), (6820, 23749), (6985, 23188), (7502, 21590), (7874, 20570), (8228, 19685), (8636, 18755), (10285, 15748), (10540, 15367), (10795, 15004), (11594, 13970)]