18409328

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 80

約数和(自身を含む): 44163840

約数和(自身を除く): 25754512

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 41, 56, 76, 82, 112, 133, 152, 164, 211, 266, 287, 304, 328, 422, 532, 574, 656, 779, 844, 1064, 1148, 1477, 1558, 1688, 2128, 2296, 2954, 3116, 3376, 4009, 4592, 5453, 5908, 6232, 8018, 8651, 10906, 11816, 12464, 16036, 17302, 21812, 23632, 28063, 32072, 34604, 43624, 56126, 60557, 64144, 69208, 87248, 112252, 121114, 138416, 164369, 224504, 242228, 328738, 449008, 484456, 657476, 968912, 1150583, 1314952, 2301166, 2629904, 4602332, 9204664, 18409328]

約数ペア:

[(1, 18409328), (2, 9204664), (4, 4602332), (7, 2629904), (8, 2301166), (14, 1314952), (16, 1150583), (19, 968912), (28, 657476), (38, 484456), (41, 449008), (56, 328738), (76, 242228), (82, 224504), (112, 164369), (133, 138416), (152, 121114), (164, 112252), (211, 87248), (266, 69208), (287, 64144), (304, 60557), (328, 56126), (422, 43624), (532, 34604), (574, 32072), (656, 28063), (779, 23632), (844, 21812), (1064, 17302), (1148, 16036), (1477, 12464), (1558, 11816), (1688, 10906), (2128, 8651), (2296, 8018), (2954, 6232), (3116, 5908), (3376, 5453), (4009, 4592)]