18945990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:127

約数の個数: 192

約数和(自身を含む): 62674560

約数和(自身を除く): 43728570

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 29, 30, 34, 35, 42, 45, 51, 58, 61, 63, 70, 85, 87, 90, 102, 105, 119, 122, 126, 145, 153, 170, 174, 183, 203, 210, 238, 255, 261, 290, 305, 306, 315, 357, 366, 406, 427, 435, 493, 510, 522, 549, 595, 609, 610, 630, 714, 765, 854, 870, 915, 986, 1015, 1037, 1071, 1098, 1190, 1218, 1281, 1305, 1479, 1530, 1769, 1785, 1827, 1830, 2030, 2074, 2135, 2142, 2465, 2562, 2610, 2745, 2958, 3045, 3111, 3451, 3538, 3570, 3654, 3843, 4270, 4437, 4930, 5185, 5307, 5355, 5490, 6090, 6222, 6405, 6902, 7259, 7395, 7686, 8845, 8874, 9135, 9333, 10353, 10370, 10614, 10710, 12383, 12810, 14518, 14790, 15555, 15921, 17255, 17690, 18270, 18666, 19215, 20706, 21777, 22185, 24766, 26535, 30073, 31059, 31110, 31842, 34510, 36295, 37149, 38430, 43554, 44370, 46665, 51765, 53070, 60146, 61915, 62118, 65331, 72590, 74298, 79605, 90219, 93330, 103530, 108885, 111447, 123830, 130662, 150365, 155295, 159210, 180438, 185745, 210511, 217770, 222894, 270657, 300730, 310590, 326655, 371490, 421022, 451095, 541314, 557235, 631533, 653310, 902190, 1052555, 1114470, 1263066, 1353285, 1894599, 2105110, 2706570, 3157665, 3789198, 6315330, 9472995, 18945990]

約数ペア:

[(1, 18945990), (2, 9472995), (3, 6315330), (5, 3789198), (6, 3157665), (7, 2706570), (9, 2105110), (10, 1894599), (14, 1353285), (15, 1263066), (17, 1114470), (18, 1052555), (21, 902190), (29, 653310), (30, 631533), (34, 557235), (35, 541314), (42, 451095), (45, 421022), (51, 371490), (58, 326655), (61, 310590), (63, 300730), (70, 270657), (85, 222894), (87, 217770), (90, 210511), (102, 185745), (105, 180438), (119, 159210), (122, 155295), (126, 150365), (145, 130662), (153, 123830), (170, 111447), (174, 108885), (183, 103530), (203, 93330), (210, 90219), (238, 79605), (255, 74298), (261, 72590), (290, 65331), (305, 62118), (306, 61915), (315, 60146), (357, 53070), (366, 51765), (406, 46665), (427, 44370), (435, 43554), (493, 38430), (510, 37149), (522, 36295), (549, 34510), (595, 31842), (609, 31110), (610, 31059), (630, 30073), (714, 26535), (765, 24766), (854, 22185), (870, 21777), (915, 20706), (986, 19215), (1015, 18666), (1037, 18270), (1071, 17690), (1098, 17255), (1190, 15921), (1218, 15555), (1281, 14790), (1305, 14518), (1479, 12810), (1530, 12383), (1769, 10710), (1785, 10614), (1827, 10370), (1830, 10353), (2030, 9333), (2074, 9135), (2135, 8874), (2142, 8845), (2465, 7686), (2562, 7395), (2610, 7259), (2745, 6902), (2958, 6405), (3045, 6222), (3111, 6090), (3451, 5490), (3538, 5355), (3570, 5307), (3654, 5185), (3843, 4930), (4270, 4437)]