20823280

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11317}}^1$

素因数の和:11353

約数の個数: 40

約数和(自身を含む): 50523552

約数和(自身を除く): 29700272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11317, 22634, 45268, 56585, 90536, 113170, 181072, 226340, 260291, 452680, 520582, 905360, 1041164, 1301455, 2082328, 2602910, 4164656, 5205820, 10411640, 20823280]

約数ペア:

[(1, 20823280), (2, 10411640), (4, 5205820), (5, 4164656), (8, 2602910), (10, 2082328), (16, 1301455), (20, 1041164), (23, 905360), (40, 520582), (46, 452680), (80, 260291), (92, 226340), (115, 181072), (184, 113170), (230, 90536), (368, 56585), (460, 45268), (920, 22634), (1840, 11317)]