81642640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44371}}^1$

素因数の和:44407

約数の個数: 40

約数和(自身を含む): 198076608

約数和(自身を除く): 116433968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 44371, 88742, 177484, 221855, 354968, 443710, 709936, 887420, 1020533, 1774840, 2041066, 3549680, 4082132, 5102665, 8164264, 10205330, 16328528, 20410660, 40821320, 81642640]

約数ペア:

[(1, 81642640), (2, 40821320), (4, 20410660), (5, 16328528), (8, 10205330), (10, 8164264), (16, 5102665), (20, 4082132), (23, 3549680), (40, 2041066), (46, 1774840), (80, 1020533), (92, 887420), (115, 709936), (184, 443710), (230, 354968), (368, 221855), (460, 177484), (920, 88742), (1840, 44371)]