20563520

素因数分解:

$2^6\times 5^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1$

素因数の和:555

約数の個数: 56

約数和(自身を含む): 49377600

約数和(自身を除く): 28814080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 179, 320, 358, 359, 716, 718, 895, 1432, 1436, 1790, 1795, 2864, 2872, 3580, 3590, 5728, 5744, 7160, 7180, 11456, 11488, 14320, 14360, 22976, 28640, 28720, 57280, 57440, 64261, 114880, 128522, 257044, 321305, 514088, 642610, 1028176, 1285220, 2056352, 2570440, 4112704, 5140880, 10281760, 20563520]

約数ペア:

[(1, 20563520), (2, 10281760), (4, 5140880), (5, 4112704), (8, 2570440), (10, 2056352), (16, 1285220), (20, 1028176), (32, 642610), (40, 514088), (64, 321305), (80, 257044), (160, 128522), (179, 114880), (320, 64261), (358, 57440), (359, 57280), (716, 28720), (718, 28640), (895, 22976), (1432, 14360), (1436, 14320), (1790, 11488), (1795, 11456), (2864, 7180), (2872, 7160), (3580, 5744), (3590, 5728)]