20945400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{4987}}^1$

素因数の和:5013

約数の個数: 96

約数和(自身を含む): 74221440

約数和(自身を除く): 53276040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 140, 150, 168, 175, 200, 210, 280, 300, 350, 420, 525, 600, 700, 840, 1050, 1400, 2100, 4200, 4987, 9974, 14961, 19948, 24935, 29922, 34909, 39896, 49870, 59844, 69818, 74805, 99740, 104727, 119688, 124675, 139636, 149610, 174545, 199480, 209454, 249350, 279272, 299220, 349090, 374025, 418908, 498700, 523635, 598440, 698180, 748050, 837816, 872725, 997400, 1047270, 1396360, 1496100, 1745450, 2094540, 2618175, 2992200, 3490900, 4189080, 5236350, 6981800, 10472700, 20945400]

約数ペア:

[(1, 20945400), (2, 10472700), (3, 6981800), (4, 5236350), (5, 4189080), (6, 3490900), (7, 2992200), (8, 2618175), (10, 2094540), (12, 1745450), (14, 1496100), (15, 1396360), (20, 1047270), (21, 997400), (24, 872725), (25, 837816), (28, 748050), (30, 698180), (35, 598440), (40, 523635), (42, 498700), (50, 418908), (56, 374025), (60, 349090), (70, 299220), (75, 279272), (84, 249350), (100, 209454), (105, 199480), (120, 174545), (140, 149610), (150, 139636), (168, 124675), (175, 119688), (200, 104727), (210, 99740), (280, 74805), (300, 69818), (350, 59844), (420, 49870), (525, 39896), (600, 34909), (700, 29922), (840, 24935), (1050, 19948), (1400, 14961), (2100, 9974), (4200, 4987)]