20053760

素因数分解:

$2^8\times 5^1\times {\mathrm{15667}}^1$

素因数の和:15688

約数の個数: 36

約数和(自身を含む): 48038088

約数和(自身を除く): 27984328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15667, 31334, 62668, 78335, 125336, 156670, 250672, 313340, 501344, 626680, 1002688, 1253360, 2005376, 2506720, 4010752, 5013440, 10026880, 20053760]

約数ペア:

[(1, 20053760), (2, 10026880), (4, 5013440), (5, 4010752), (8, 2506720), (10, 2005376), (16, 1253360), (20, 1002688), (32, 626680), (40, 501344), (64, 313340), (80, 250672), (128, 156670), (160, 125336), (256, 78335), (320, 62668), (640, 31334), (1280, 15667)]