78465100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{569}}^1$

素因数の和:787

約数の個数: 72

約数和(自身を含む): 195924960

約数和(自身を除く): 117459860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 197, 350, 394, 569, 700, 788, 985, 1138, 1379, 1970, 2276, 2758, 2845, 3940, 3983, 4925, 5516, 5690, 6895, 7966, 9850, 11380, 13790, 14225, 15932, 19700, 19915, 27580, 28450, 34475, 39830, 56900, 68950, 79660, 99575, 112093, 137900, 199150, 224186, 398300, 448372, 560465, 784651, 1120930, 1569302, 2241860, 2802325, 3138604, 3923255, 5604650, 7846510, 11209300, 15693020, 19616275, 39232550, 78465100]

約数ペア:

[(1, 78465100), (2, 39232550), (4, 19616275), (5, 15693020), (7, 11209300), (10, 7846510), (14, 5604650), (20, 3923255), (25, 3138604), (28, 2802325), (35, 2241860), (50, 1569302), (70, 1120930), (100, 784651), (140, 560465), (175, 448372), (197, 398300), (350, 224186), (394, 199150), (569, 137900), (700, 112093), (788, 99575), (985, 79660), (1138, 68950), (1379, 56900), (1970, 39830), (2276, 34475), (2758, 28450), (2845, 27580), (3940, 19915), (3983, 19700), (4925, 15932), (5516, 14225), (5690, 13790), (6895, 11380), (7966, 9850)]