81981684

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1381}}^1$

素因数の和:1505

約数の個数: 72

約数和(自身を含む): 221844168

約数和(自身を除く): 139862484

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 97, 102, 153, 194, 204, 291, 306, 388, 582, 612, 873, 1164, 1381, 1649, 1746, 2762, 3298, 3492, 4143, 4947, 5524, 6596, 8286, 9894, 12429, 14841, 16572, 19788, 23477, 24858, 29682, 46954, 49716, 59364, 70431, 93908, 133957, 140862, 211293, 267914, 281724, 401871, 422586, 535828, 803742, 845172, 1205613, 1607484, 2277269, 2411226, 4554538, 4822452, 6831807, 9109076, 13663614, 20495421, 27327228, 40990842, 81981684]

約数ペア:

[(1, 81981684), (2, 40990842), (3, 27327228), (4, 20495421), (6, 13663614), (9, 9109076), (12, 6831807), (17, 4822452), (18, 4554538), (34, 2411226), (36, 2277269), (51, 1607484), (68, 1205613), (97, 845172), (102, 803742), (153, 535828), (194, 422586), (204, 401871), (291, 281724), (306, 267914), (388, 211293), (582, 140862), (612, 133957), (873, 93908), (1164, 70431), (1381, 59364), (1649, 49716), (1746, 46954), (2762, 29682), (3298, 24858), (3492, 23477), (4143, 19788), (4947, 16572), (5524, 14841), (6596, 12429), (8286, 9894)]