81996982020

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{276587}}^1$

素因数の和:276672

約数の個数: 144

約数和(自身を含む): 262165595328

約数和(自身を除く): 180168613308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 108, 122, 135, 162, 180, 183, 243, 244, 270, 305, 324, 366, 405, 486, 540, 549, 610, 732, 810, 915, 972, 1098, 1215, 1220, 1620, 1647, 1830, 2196, 2430, 2745, 3294, 3660, 4860, 4941, 5490, 6588, 8235, 9882, 10980, 14823, 16470, 19764, 24705, 29646, 32940, 49410, 59292, 74115, 98820, 148230, 276587, 296460, 553174, 829761, 1106348, 1382935, 1659522, 2489283, 2765870, 3319044, 4148805, 4978566, 5531740, 7467849, 8297610, 9957132, 12446415, 14935698, 16595220, 16871807, 22403547, 24892830, 29871396, 33743614, 37339245, 44807094, 49785660, 50615421, 67210641, 67487228, 74678490, 84359035, 89614188, 101230842, 112017735, 134421282, 149356980, 151846263, 168718070, 202461684, 224035470, 253077105, 268842564, 303692526, 336053205, 337436140, 448070940, 455538789, 506154210, 607385052, 672106410, 759231315, 911077578, 1012308420, 1344212820, 1366616367, 1518462630, 1822155156, 2277693945, 2733232734, 3036925260, 4099849101, 4555387890, 5466465468, 6833081835, 8199698202, 9110775780, 13666163670, 16399396404, 20499245505, 27332327340, 40998491010, 81996982020]

約数ペア:

[(1, 81996982020), (2, 40998491010), (3, 27332327340), (4, 20499245505), (5, 16399396404), (6, 13666163670), (9, 9110775780), (10, 8199698202), (12, 6833081835), (15, 5466465468), (18, 4555387890), (20, 4099849101), (27, 3036925260), (30, 2733232734), (36, 2277693945), (45, 1822155156), (54, 1518462630), (60, 1366616367), (61, 1344212820), (81, 1012308420), (90, 911077578), (108, 759231315), (122, 672106410), (135, 607385052), (162, 506154210), (180, 455538789), (183, 448070940), (243, 337436140), (244, 336053205), (270, 303692526), (305, 268842564), (324, 253077105), (366, 224035470), (405, 202461684), (486, 168718070), (540, 151846263), (549, 149356980), (610, 134421282), (732, 112017735), (810, 101230842), (915, 89614188), (972, 84359035), (1098, 74678490), (1215, 67487228), (1220, 67210641), (1620, 50615421), (1647, 49785660), (1830, 44807094), (2196, 37339245), (2430, 33743614), (2745, 29871396), (3294, 24892830), (3660, 22403547), (4860, 16871807), (4941, 16595220), (5490, 14935698), (6588, 12446415), (8235, 9957132), (9882, 8297610), (10980, 7467849), (14823, 5531740), (16470, 4978566), (19764, 4148805), (24705, 3319044), (29646, 2765870), (32940, 2489283), (49410, 1659522), (59292, 1382935), (74115, 1106348), (98820, 829761), (148230, 553174), (276587, 296460)]