12756691960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1\times {\mathrm{25943}}^1$

素因数の和:26620

約数の個数: 64

約数和(自身を含む): 30261081600

約数和(自身を除く): 17504389640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 647, 760, 1294, 2588, 3235, 5176, 6470, 12293, 12940, 24586, 25880, 25943, 49172, 51886, 61465, 98344, 103772, 122930, 129715, 207544, 245860, 259430, 491720, 492917, 518860, 985834, 1037720, 1971668, 2464585, 3943336, 4929170, 9858340, 16785121, 19716680, 33570242, 67140484, 83925605, 134280968, 167851210, 318917299, 335702420, 637834598, 671404840, 1275669196, 1594586495, 2551338392, 3189172990, 6378345980, 12756691960]

約数ペア:

[(1, 12756691960), (2, 6378345980), (4, 3189172990), (5, 2551338392), (8, 1594586495), (10, 1275669196), (19, 671404840), (20, 637834598), (38, 335702420), (40, 318917299), (76, 167851210), (95, 134280968), (152, 83925605), (190, 67140484), (380, 33570242), (647, 19716680), (760, 16785121), (1294, 9858340), (2588, 4929170), (3235, 3943336), (5176, 2464585), (6470, 1971668), (12293, 1037720), (12940, 985834), (24586, 518860), (25880, 492917), (25943, 491720), (49172, 259430), (51886, 245860), (61465, 207544), (98344, 129715), (103772, 122930)]