261580046

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:777

約数の個数: 64

約数和(自身を含む): 506290176

約数和(自身を除く): 244710130

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 71, 91, 142, 182, 217, 403, 434, 497, 653, 806, 923, 994, 1306, 1846, 2201, 2821, 4402, 4571, 5642, 6461, 8489, 9142, 12922, 15407, 16978, 20243, 28613, 30814, 40486, 46363, 57226, 59423, 92726, 118846, 141701, 200291, 263159, 283402, 324541, 400582, 526318, 602719, 649082, 1205438, 1437253, 1842113, 2874506, 3684226, 4219033, 8438066, 10060771, 18684289, 20121542, 37368578, 130790023, 261580046]

約数ペア:

[(1, 261580046), (2, 130790023), (7, 37368578), (13, 20121542), (14, 18684289), (26, 10060771), (31, 8438066), (62, 4219033), (71, 3684226), (91, 2874506), (142, 1842113), (182, 1437253), (217, 1205438), (403, 649082), (434, 602719), (497, 526318), (653, 400582), (806, 324541), (923, 283402), (994, 263159), (1306, 200291), (1846, 141701), (2201, 118846), (2821, 92726), (4402, 59423), (4571, 57226), (5642, 46363), (6461, 40486), (8489, 30814), (9142, 28613), (12922, 20243), (15407, 16978)]