20125518

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 49517568

約数和(自身を除く): 29392050

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 71, 102, 119, 142, 213, 238, 357, 397, 426, 497, 714, 794, 994, 1191, 1207, 1491, 2382, 2414, 2779, 2982, 3621, 5558, 6749, 7242, 8337, 8449, 13498, 16674, 16898, 20247, 25347, 28187, 40494, 47243, 50694, 56374, 84561, 94486, 141729, 169122, 197309, 283458, 394618, 479179, 591927, 958358, 1183854, 1437537, 2875074, 3354253, 6708506, 10062759, 20125518]

約数ペア:

[(1, 20125518), (2, 10062759), (3, 6708506), (6, 3354253), (7, 2875074), (14, 1437537), (17, 1183854), (21, 958358), (34, 591927), (42, 479179), (51, 394618), (71, 283458), (102, 197309), (119, 169122), (142, 141729), (213, 94486), (238, 84561), (357, 56374), (397, 50694), (426, 47243), (497, 40494), (714, 28187), (794, 25347), (994, 20247), (1191, 16898), (1207, 16674), (1491, 13498), (2382, 8449), (2414, 8337), (2779, 7242), (2982, 6749), (3621, 5558)]