20586880

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1693}}^1$

素因数の和:1731

約数の個数: 64

約数和(自身を含む): 51836400

約数和(自身を除く): 31249520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 1693, 2432, 3040, 3386, 6080, 6772, 8465, 12160, 13544, 16930, 27088, 32167, 33860, 54176, 64334, 67720, 108352, 128668, 135440, 160835, 216704, 257336, 270880, 321670, 514672, 541760, 643340, 1029344, 1083520, 1286680, 2058688, 2573360, 4117376, 5146720, 10293440, 20586880]

約数ペア:

[(1, 20586880), (2, 10293440), (4, 5146720), (5, 4117376), (8, 2573360), (10, 2058688), (16, 1286680), (19, 1083520), (20, 1029344), (32, 643340), (38, 541760), (40, 514672), (64, 321670), (76, 270880), (80, 257336), (95, 216704), (128, 160835), (152, 135440), (160, 128668), (190, 108352), (304, 67720), (320, 64334), (380, 54176), (608, 33860), (640, 32167), (760, 27088), (1216, 16930), (1520, 13544), (1693, 12160), (2432, 8465), (3040, 6772), (3386, 6080)]