20011600

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{1021}}^1$

素因数の和:1053

約数の個数: 90

約数和(自身を含む): 55982094

約数和(自身を除く): 35970494

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1021, 1225, 1400, 1960, 2042, 2450, 2800, 3920, 4084, 4900, 5105, 7147, 8168, 9800, 10210, 14294, 16336, 19600, 20420, 25525, 28588, 35735, 40840, 50029, 51050, 57176, 71470, 81680, 100058, 102100, 114352, 142940, 178675, 200116, 204200, 250145, 285880, 357350, 400232, 408400, 500290, 571760, 714700, 800464, 1000580, 1250725, 1429400, 2001160, 2501450, 2858800, 4002320, 5002900, 10005800, 20011600]

約数ペア:

[(1, 20011600), (2, 10005800), (4, 5002900), (5, 4002320), (7, 2858800), (8, 2501450), (10, 2001160), (14, 1429400), (16, 1250725), (20, 1000580), (25, 800464), (28, 714700), (35, 571760), (40, 500290), (49, 408400), (50, 400232), (56, 357350), (70, 285880), (80, 250145), (98, 204200), (100, 200116), (112, 178675), (140, 142940), (175, 114352), (196, 102100), (200, 100058), (245, 81680), (280, 71470), (350, 57176), (392, 51050), (400, 50029), (490, 40840), (560, 35735), (700, 28588), (784, 25525), (980, 20420), (1021, 19600), (1225, 16336), (1400, 14294), (1960, 10210), (2042, 9800), (2450, 8168), (2800, 7147), (3920, 5105), (4084, 4900)]