81357408

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:509

約数の個数: 144

約数和(自身を含む): 257139792

約数和(自身を除く): 175782384

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 61, 66, 72, 88, 96, 99, 122, 132, 144, 176, 183, 198, 244, 264, 288, 352, 366, 396, 421, 488, 528, 549, 671, 732, 792, 842, 976, 1056, 1098, 1263, 1342, 1464, 1584, 1684, 1952, 2013, 2196, 2526, 2684, 2928, 3168, 3368, 3789, 4026, 4392, 4631, 5052, 5368, 5856, 6039, 6736, 7578, 8052, 8784, 9262, 10104, 10736, 12078, 13472, 13893, 15156, 16104, 17568, 18524, 20208, 21472, 24156, 25681, 27786, 30312, 32208, 37048, 40416, 41679, 48312, 51362, 55572, 60624, 64416, 74096, 77043, 83358, 96624, 102724, 111144, 121248, 148192, 154086, 166716, 193248, 205448, 222288, 231129, 282491, 308172, 333432, 410896, 444576, 462258, 564982, 616344, 666864, 821792, 847473, 924516, 1129964, 1232688, 1333728, 1694946, 1849032, 2259928, 2465376, 2542419, 3389892, 3698064, 4519856, 5084838, 6779784, 7396128, 9039712, 10169676, 13559568, 20339352, 27119136, 40678704, 81357408]

約数ペア:

[(1, 81357408), (2, 40678704), (3, 27119136), (4, 20339352), (6, 13559568), (8, 10169676), (9, 9039712), (11, 7396128), (12, 6779784), (16, 5084838), (18, 4519856), (22, 3698064), (24, 3389892), (32, 2542419), (33, 2465376), (36, 2259928), (44, 1849032), (48, 1694946), (61, 1333728), (66, 1232688), (72, 1129964), (88, 924516), (96, 847473), (99, 821792), (122, 666864), (132, 616344), (144, 564982), (176, 462258), (183, 444576), (198, 410896), (244, 333432), (264, 308172), (288, 282491), (352, 231129), (366, 222288), (396, 205448), (421, 193248), (488, 166716), (528, 154086), (549, 148192), (671, 121248), (732, 111144), (792, 102724), (842, 96624), (976, 83358), (1056, 77043), (1098, 74096), (1263, 64416), (1342, 60624), (1464, 55572), (1584, 51362), (1684, 48312), (1952, 41679), (2013, 40416), (2196, 37048), (2526, 32208), (2684, 30312), (2928, 27786), (3168, 25681), (3368, 24156), (3789, 21472), (4026, 20208), (4392, 18524), (4631, 17568), (5052, 16104), (5368, 15156), (5856, 13893), (6039, 13472), (6736, 12078), (7578, 10736), (8052, 10104), (8784, 9262)]