400287960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3821}}^1$

素因数の和:3938

約数の個数: 128

約数和(自身を含む): 1348401600

約数和(自身を除く): 948113640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 97, 108, 120, 135, 180, 194, 216, 270, 291, 360, 388, 485, 540, 582, 776, 873, 970, 1080, 1164, 1455, 1746, 1940, 2328, 2619, 2910, 3492, 3821, 3880, 4365, 5238, 5820, 6984, 7642, 8730, 10476, 11463, 11640, 13095, 15284, 17460, 19105, 20952, 22926, 26190, 30568, 34389, 34920, 38210, 45852, 52380, 57315, 68778, 76420, 91704, 103167, 104760, 114630, 137556, 152840, 171945, 206334, 229260, 275112, 343890, 370637, 412668, 458520, 515835, 687780, 741274, 825336, 1031670, 1111911, 1375560, 1482548, 1853185, 2063340, 2223822, 2965096, 3335733, 3706370, 4126680, 4447644, 5559555, 6671466, 7412740, 8895288, 10007199, 11119110, 13342932, 14825480, 16678665, 20014398, 22238220, 26685864, 33357330, 40028796, 44476440, 50035995, 66714660, 80057592, 100071990, 133429320, 200143980, 400287960]

約数ペア:

[(1, 400287960), (2, 200143980), (3, 133429320), (4, 100071990), (5, 80057592), (6, 66714660), (8, 50035995), (9, 44476440), (10, 40028796), (12, 33357330), (15, 26685864), (18, 22238220), (20, 20014398), (24, 16678665), (27, 14825480), (30, 13342932), (36, 11119110), (40, 10007199), (45, 8895288), (54, 7412740), (60, 6671466), (72, 5559555), (90, 4447644), (97, 4126680), (108, 3706370), (120, 3335733), (135, 2965096), (180, 2223822), (194, 2063340), (216, 1853185), (270, 1482548), (291, 1375560), (360, 1111911), (388, 1031670), (485, 825336), (540, 741274), (582, 687780), (776, 515835), (873, 458520), (970, 412668), (1080, 370637), (1164, 343890), (1455, 275112), (1746, 229260), (1940, 206334), (2328, 171945), (2619, 152840), (2910, 137556), (3492, 114630), (3821, 104760), (3880, 103167), (4365, 91704), (5238, 76420), (5820, 68778), (6984, 57315), (7642, 52380), (8730, 45852), (10476, 38210), (11463, 34920), (11640, 34389), (13095, 30568), (15284, 26190), (17460, 22926), (19105, 20952)]