19654600

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 53121600

約数和(自身を除く): 33467000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 101, 139, 140, 175, 200, 202, 278, 280, 350, 404, 505, 556, 695, 700, 707, 808, 973, 1010, 1112, 1390, 1400, 1414, 1946, 2020, 2525, 2780, 2828, 3475, 3535, 3892, 4040, 4865, 5050, 5560, 5656, 6950, 7070, 7784, 9730, 10100, 13900, 14039, 14140, 17675, 19460, 20200, 24325, 27800, 28078, 28280, 35350, 38920, 48650, 56156, 70195, 70700, 97300, 98273, 112312, 140390, 141400, 194600, 196546, 280780, 350975, 393092, 491365, 561560, 701950, 786184, 982730, 1403900, 1965460, 2456825, 2807800, 3930920, 4913650, 9827300, 19654600]

約数ペア:

[(1, 19654600), (2, 9827300), (4, 4913650), (5, 3930920), (7, 2807800), (8, 2456825), (10, 1965460), (14, 1403900), (20, 982730), (25, 786184), (28, 701950), (35, 561560), (40, 491365), (50, 393092), (56, 350975), (70, 280780), (100, 196546), (101, 194600), (139, 141400), (140, 140390), (175, 112312), (200, 98273), (202, 97300), (278, 70700), (280, 70195), (350, 56156), (404, 48650), (505, 38920), (556, 35350), (695, 28280), (700, 28078), (707, 27800), (808, 24325), (973, 20200), (1010, 19460), (1112, 17675), (1390, 14140), (1400, 14039), (1414, 13900), (1946, 10100), (2020, 9730), (2525, 7784), (2780, 7070), (2828, 6950), (3475, 5656), (3535, 5560), (3892, 5050), (4040, 4865)]