81513810

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:142

約数の個数: 256

約数和(自身を含む): 273715200

約数和(自身を除く): 192201390

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 27, 30, 34, 35, 42, 43, 45, 51, 54, 59, 63, 70, 85, 86, 90, 102, 105, 118, 119, 126, 129, 135, 153, 170, 177, 189, 210, 215, 238, 255, 258, 270, 295, 301, 306, 315, 354, 357, 378, 387, 413, 430, 459, 510, 531, 590, 595, 602, 630, 645, 714, 731, 765, 774, 826, 885, 903, 918, 945, 1003, 1062, 1071, 1161, 1190, 1239, 1290, 1462, 1505, 1530, 1593, 1770, 1785, 1806, 1890, 1935, 2006, 2065, 2142, 2193, 2295, 2322, 2478, 2537, 2655, 2709, 3009, 3010, 3186, 3213, 3570, 3655, 3717, 3870, 4130, 4386, 4515, 4590, 5015, 5074, 5117, 5310, 5355, 5418, 5805, 6018, 6195, 6426, 6579, 7021, 7310, 7434, 7611, 7965, 8127, 9027, 9030, 10030, 10234, 10710, 10965, 11151, 11610, 12390, 12685, 13158, 13545, 14042, 15045, 15222, 15351, 15930, 16065, 16254, 17759, 18054, 18585, 19737, 21063, 21930, 22302, 22833, 25370, 25585, 27081, 27090, 30090, 30702, 32130, 32895, 35105, 35518, 37170, 38055, 39474, 40635, 42126, 43129, 45135, 45666, 46053, 51170, 53277, 54162, 55755, 63189, 65790, 68499, 70210, 76110, 76755, 81270, 86258, 88795, 90270, 92106, 98685, 105315, 106554, 111510, 114165, 126378, 129387, 135405, 136998, 138159, 153510, 159831, 177590, 189567, 197370, 210630, 215645, 228330, 230265, 258774, 266385, 270810, 276318, 301903, 315945, 319662, 342495, 379134, 388161, 431290, 460530, 479493, 532770, 603806, 631890, 646935, 684990, 690795, 776322, 799155, 905709, 947835, 958986, 1164483, 1293870, 1381590, 1509515, 1598310, 1811418, 1895670, 1940805, 2328966, 2397465, 2717127, 3019030, 3881610, 4528545, 4794930, 5434254, 5822415, 8151381, 9057090, 11644830, 13585635, 16302762, 27171270, 40756905, 81513810]

約数ペア:

[(1, 81513810), (2, 40756905), (3, 27171270), (5, 16302762), (6, 13585635), (7, 11644830), (9, 9057090), (10, 8151381), (14, 5822415), (15, 5434254), (17, 4794930), (18, 4528545), (21, 3881610), (27, 3019030), (30, 2717127), (34, 2397465), (35, 2328966), (42, 1940805), (43, 1895670), (45, 1811418), (51, 1598310), (54, 1509515), (59, 1381590), (63, 1293870), (70, 1164483), (85, 958986), (86, 947835), (90, 905709), (102, 799155), (105, 776322), (118, 690795), (119, 684990), (126, 646935), (129, 631890), (135, 603806), (153, 532770), (170, 479493), (177, 460530), (189, 431290), (210, 388161), (215, 379134), (238, 342495), (255, 319662), (258, 315945), (270, 301903), (295, 276318), (301, 270810), (306, 266385), (315, 258774), (354, 230265), (357, 228330), (378, 215645), (387, 210630), (413, 197370), (430, 189567), (459, 177590), (510, 159831), (531, 153510), (590, 138159), (595, 136998), (602, 135405), (630, 129387), (645, 126378), (714, 114165), (731, 111510), (765, 106554), (774, 105315), (826, 98685), (885, 92106), (903, 90270), (918, 88795), (945, 86258), (1003, 81270), (1062, 76755), (1071, 76110), (1161, 70210), (1190, 68499), (1239, 65790), (1290, 63189), (1462, 55755), (1505, 54162), (1530, 53277), (1593, 51170), (1770, 46053), (1785, 45666), (1806, 45135), (1890, 43129), (1935, 42126), (2006, 40635), (2065, 39474), (2142, 38055), (2193, 37170), (2295, 35518), (2322, 35105), (2478, 32895), (2537, 32130), (2655, 30702), (2709, 30090), (3009, 27090), (3010, 27081), (3186, 25585), (3213, 25370), (3570, 22833), (3655, 22302), (3717, 21930), (3870, 21063), (4130, 19737), (4386, 18585), (4515, 18054), (4590, 17759), (5015, 16254), (5074, 16065), (5117, 15930), (5310, 15351), (5355, 15222), (5418, 15045), (5805, 14042), (6018, 13545), (6195, 13158), (6426, 12685), (6579, 12390), (7021, 11610), (7310, 11151), (7434, 10965), (7611, 10710), (7965, 10234), (8127, 10030), (9027, 9030)]