81204176

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:268

約数の個数: 80

約数和(自身を含む): 175286400

約数和(自身を除く): 94082224

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 61, 76, 116, 122, 151, 152, 232, 244, 302, 304, 464, 488, 551, 604, 976, 1102, 1159, 1208, 1769, 2204, 2318, 2416, 2869, 3538, 4379, 4408, 4636, 5738, 7076, 8758, 8816, 9211, 9272, 11476, 14152, 17516, 18422, 18544, 22952, 28304, 33611, 35032, 36844, 45904, 67222, 70064, 73688, 83201, 134444, 147376, 166402, 175009, 267119, 268888, 332804, 350018, 534238, 537776, 665608, 700036, 1068476, 1331216, 1400072, 2136952, 2800144, 4273904, 5075261, 10150522, 20301044, 40602088, 81204176]

約数ペア:

[(1, 81204176), (2, 40602088), (4, 20301044), (8, 10150522), (16, 5075261), (19, 4273904), (29, 2800144), (38, 2136952), (58, 1400072), (61, 1331216), (76, 1068476), (116, 700036), (122, 665608), (151, 537776), (152, 534238), (232, 350018), (244, 332804), (302, 268888), (304, 267119), (464, 175009), (488, 166402), (551, 147376), (604, 134444), (976, 83201), (1102, 73688), (1159, 70064), (1208, 67222), (1769, 45904), (2204, 36844), (2318, 35032), (2416, 33611), (2869, 28304), (3538, 22952), (4379, 18544), (4408, 18422), (4636, 17516), (5738, 14152), (7076, 11476), (8758, 9272), (8816, 9211)]