81120676

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:154

約数の個数: 108

約数和(自身を含む): 186923520

約数和(自身を除く): 105802844

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 79, 91, 98, 124, 158, 169, 182, 196, 217, 316, 338, 364, 403, 434, 553, 637, 676, 806, 868, 1027, 1106, 1183, 1274, 1519, 1612, 2054, 2212, 2366, 2449, 2548, 2821, 3038, 3871, 4108, 4732, 4898, 5239, 5642, 6076, 7189, 7742, 8281, 9796, 10478, 11284, 13351, 14378, 15484, 16562, 17143, 19747, 20956, 26702, 28756, 31837, 33124, 34286, 36673, 39494, 50323, 53404, 63674, 68572, 73346, 78988, 93457, 100646, 120001, 127348, 146692, 186914, 201292, 222859, 240002, 256711, 373828, 413881, 445718, 480004, 513422, 654199, 827762, 891436, 1026844, 1308398, 1560013, 1655524, 2616796, 2897167, 3120026, 5794334, 6240052, 11588668, 20280169, 40560338, 81120676]

約数ペア:

[(1, 81120676), (2, 40560338), (4, 20280169), (7, 11588668), (13, 6240052), (14, 5794334), (26, 3120026), (28, 2897167), (31, 2616796), (49, 1655524), (52, 1560013), (62, 1308398), (79, 1026844), (91, 891436), (98, 827762), (124, 654199), (158, 513422), (169, 480004), (182, 445718), (196, 413881), (217, 373828), (316, 256711), (338, 240002), (364, 222859), (403, 201292), (434, 186914), (553, 146692), (637, 127348), (676, 120001), (806, 100646), (868, 93457), (1027, 78988), (1106, 73346), (1183, 68572), (1274, 63674), (1519, 53404), (1612, 50323), (2054, 39494), (2212, 36673), (2366, 34286), (2449, 33124), (2548, 31837), (2821, 28756), (3038, 26702), (3871, 20956), (4108, 19747), (4732, 17143), (4898, 16562), (5239, 15484), (5642, 14378), (6076, 13351), (7189, 11284), (7742, 10478), (8281, 9796)]