161657640

素因数分解:

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

素因数の和:181

約数の個数: 192

約数和(自身を含む): 560894400

約数和(自身を除く): 399236760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 43, 45, 54, 59, 60, 72, 86, 90, 108, 118, 120, 129, 135, 172, 177, 180, 215, 216, 236, 258, 270, 295, 344, 354, 360, 387, 430, 472, 516, 531, 540, 590, 645, 708, 774, 860, 885, 1032, 1062, 1080, 1161, 1180, 1290, 1416, 1548, 1593, 1720, 1770, 1935, 2124, 2322, 2360, 2537, 2580, 2655, 3096, 3186, 3481, 3540, 3870, 4248, 4644, 5074, 5160, 5310, 5805, 6372, 6962, 7080, 7611, 7740, 7965, 9288, 10148, 10443, 10620, 11610, 12685, 12744, 13924, 15222, 15480, 15930, 17405, 20296, 20886, 21240, 22833, 23220, 25370, 27848, 30444, 31329, 31860, 34810, 38055, 41772, 45666, 46440, 50740, 52215, 60888, 62658, 63720, 68499, 69620, 76110, 83544, 91332, 93987, 101480, 104430, 114165, 125316, 136998, 139240, 149683, 152220, 156645, 182664, 187974, 208860, 228330, 250632, 273996, 299366, 304440, 313290, 342495, 375948, 417720, 449049, 456660, 469935, 547992, 598732, 626580, 684990, 748415, 751896, 898098, 913320, 939870, 1197464, 1253160, 1347147, 1369980, 1496830, 1796196, 1879740, 2245245, 2694294, 2739960, 2993660, 3592392, 3759480, 4041441, 4490490, 5388588, 5987320, 6735735, 8082882, 8980980, 10777176, 13471470, 16165764, 17961960, 20207205, 26942940, 32331528, 40414410, 53885880, 80828820, 161657640]

約数ペア:

[(1, 161657640), (2, 80828820), (3, 53885880), (4, 40414410), (5, 32331528), (6, 26942940), (8, 20207205), (9, 17961960), (10, 16165764), (12, 13471470), (15, 10777176), (18, 8980980), (20, 8082882), (24, 6735735), (27, 5987320), (30, 5388588), (36, 4490490), (40, 4041441), (43, 3759480), (45, 3592392), (54, 2993660), (59, 2739960), (60, 2694294), (72, 2245245), (86, 1879740), (90, 1796196), (108, 1496830), (118, 1369980), (120, 1347147), (129, 1253160), (135, 1197464), (172, 939870), (177, 913320), (180, 898098), (215, 751896), (216, 748415), (236, 684990), (258, 626580), (270, 598732), (295, 547992), (344, 469935), (354, 456660), (360, 449049), (387, 417720), (430, 375948), (472, 342495), (516, 313290), (531, 304440), (540, 299366), (590, 273996), (645, 250632), (708, 228330), (774, 208860), (860, 187974), (885, 182664), (1032, 156645), (1062, 152220), (1080, 149683), (1161, 139240), (1180, 136998), (1290, 125316), (1416, 114165), (1548, 104430), (1593, 101480), (1720, 93987), (1770, 91332), (1935, 83544), (2124, 76110), (2322, 69620), (2360, 68499), (2537, 63720), (2580, 62658), (2655, 60888), (3096, 52215), (3186, 50740), (3481, 46440), (3540, 45666), (3870, 41772), (4248, 38055), (4644, 34810), (5074, 31860), (5160, 31329), (5310, 30444), (5805, 27848), (6372, 25370), (6962, 23220), (7080, 22833), (7611, 21240), (7740, 20886), (7965, 20296), (9288, 17405), (10148, 15930), (10443, 15480), (10620, 15222), (11610, 13924), (12685, 12744)]