25979100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 87494400

約数和(自身を除く): 61515300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 89, 100, 105, 139, 140, 150, 175, 178, 210, 267, 278, 300, 350, 356, 417, 420, 445, 525, 534, 556, 623, 695, 700, 834, 890, 973, 1050, 1068, 1246, 1335, 1390, 1668, 1780, 1869, 1946, 2085, 2100, 2225, 2492, 2670, 2780, 2919, 3115, 3475, 3738, 3892, 4170, 4450, 4865, 5340, 5838, 6230, 6675, 6950, 7476, 8340, 8900, 9345, 9730, 10425, 11676, 12371, 12460, 13350, 13900, 14595, 15575, 18690, 19460, 20850, 24325, 24742, 26700, 29190, 31150, 37113, 37380, 41700, 46725, 48650, 49484, 58380, 61855, 62300, 72975, 74226, 86597, 93450, 97300, 123710, 145950, 148452, 173194, 185565, 186900, 247420, 259791, 291900, 309275, 346388, 371130, 432985, 519582, 618550, 742260, 865970, 927825, 1039164, 1237100, 1298955, 1731940, 1855650, 2164925, 2597910, 3711300, 4329850, 5195820, 6494775, 8659700, 12989550, 25979100]

約数ペア:

[(1, 25979100), (2, 12989550), (3, 8659700), (4, 6494775), (5, 5195820), (6, 4329850), (7, 3711300), (10, 2597910), (12, 2164925), (14, 1855650), (15, 1731940), (20, 1298955), (21, 1237100), (25, 1039164), (28, 927825), (30, 865970), (35, 742260), (42, 618550), (50, 519582), (60, 432985), (70, 371130), (75, 346388), (84, 309275), (89, 291900), (100, 259791), (105, 247420), (139, 186900), (140, 185565), (150, 173194), (175, 148452), (178, 145950), (210, 123710), (267, 97300), (278, 93450), (300, 86597), (350, 74226), (356, 72975), (417, 62300), (420, 61855), (445, 58380), (525, 49484), (534, 48650), (556, 46725), (623, 41700), (695, 37380), (700, 37113), (834, 31150), (890, 29190), (973, 26700), (1050, 24742), (1068, 24325), (1246, 20850), (1335, 19460), (1390, 18690), (1668, 15575), (1780, 14595), (1869, 13900), (1946, 13350), (2085, 12460), (2100, 12371), (2225, 11676), (2492, 10425), (2670, 9730), (2780, 9345), (2919, 8900), (3115, 8340), (3475, 7476), (3738, 6950), (3892, 6675), (4170, 6230), (4450, 5838), (4865, 5340)]