77431840

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25471}}^1$

素因数の和:25505

約数の個数: 48

約数和(自身を含む): 192568320

約数和(自身を除く): 115136480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 25471, 50942, 101884, 127355, 203768, 254710, 407536, 483949, 509420, 815072, 967898, 1018840, 1935796, 2037680, 2419745, 3871592, 4075360, 4839490, 7743184, 9678980, 15486368, 19357960, 38715920, 77431840]

約数ペア:

[(1, 77431840), (2, 38715920), (4, 19357960), (5, 15486368), (8, 9678980), (10, 7743184), (16, 4839490), (19, 4075360), (20, 3871592), (32, 2419745), (38, 2037680), (40, 1935796), (76, 1018840), (80, 967898), (95, 815072), (152, 509420), (160, 483949), (190, 407536), (304, 254710), (380, 203768), (608, 127355), (760, 101884), (1520, 50942), (3040, 25471)]