19783400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1087}}^1$

素因数の和:1123

約数の個数: 96

約数和(自身を含む): 56663040

約数和(自身を除く): 36879640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 91, 100, 104, 130, 140, 175, 182, 200, 260, 280, 325, 350, 364, 455, 520, 650, 700, 728, 910, 1087, 1300, 1400, 1820, 2174, 2275, 2600, 3640, 4348, 4550, 5435, 7609, 8696, 9100, 10870, 14131, 15218, 18200, 21740, 27175, 28262, 30436, 38045, 43480, 54350, 56524, 60872, 70655, 76090, 98917, 108700, 113048, 141310, 152180, 190225, 197834, 217400, 282620, 304360, 353275, 380450, 395668, 494585, 565240, 706550, 760900, 791336, 989170, 1413100, 1521800, 1978340, 2472925, 2826200, 3956680, 4945850, 9891700, 19783400]

約数ペア:

[(1, 19783400), (2, 9891700), (4, 4945850), (5, 3956680), (7, 2826200), (8, 2472925), (10, 1978340), (13, 1521800), (14, 1413100), (20, 989170), (25, 791336), (26, 760900), (28, 706550), (35, 565240), (40, 494585), (50, 395668), (52, 380450), (56, 353275), (65, 304360), (70, 282620), (91, 217400), (100, 197834), (104, 190225), (130, 152180), (140, 141310), (175, 113048), (182, 108700), (200, 98917), (260, 76090), (280, 70655), (325, 60872), (350, 56524), (364, 54350), (455, 43480), (520, 38045), (650, 30436), (700, 28262), (728, 27175), (910, 21740), (1087, 18200), (1300, 15218), (1400, 14131), (1820, 10870), (2174, 9100), (2275, 8696), (2600, 7609), (3640, 5435), (4348, 4550)]