20370640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11071}}^1$

素因数の和:11107

約数の個数: 40

約数和(自身を含む): 49425408

約数和(自身を除く): 29054768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11071, 22142, 44284, 55355, 88568, 110710, 177136, 221420, 254633, 442840, 509266, 885680, 1018532, 1273165, 2037064, 2546330, 4074128, 5092660, 10185320, 20370640]

約数ペア:

[(1, 20370640), (2, 10185320), (4, 5092660), (5, 4074128), (8, 2546330), (10, 2037064), (16, 1273165), (20, 1018532), (23, 885680), (40, 509266), (46, 442840), (80, 254633), (92, 221420), (115, 177136), (184, 110710), (230, 88568), (368, 55355), (460, 44284), (920, 22142), (1840, 11071)]