105760520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 243302400

約数和(自身を除く): 137541880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 127, 191, 218, 254, 382, 436, 508, 545, 635, 764, 872, 955, 1016, 1090, 1270, 1528, 1910, 2180, 2540, 3820, 4360, 5080, 7640, 13843, 20819, 24257, 27686, 41638, 48514, 55372, 69215, 83276, 97028, 104095, 110744, 121285, 138430, 166552, 194056, 208190, 242570, 276860, 416380, 485140, 553720, 832760, 970280, 2644013, 5288026, 10576052, 13220065, 21152104, 26440130, 52880260, 105760520]

約数ペア:

[(1, 105760520), (2, 52880260), (4, 26440130), (5, 21152104), (8, 13220065), (10, 10576052), (20, 5288026), (40, 2644013), (109, 970280), (127, 832760), (191, 553720), (218, 485140), (254, 416380), (382, 276860), (436, 242570), (508, 208190), (545, 194056), (635, 166552), (764, 138430), (872, 121285), (955, 110744), (1016, 104095), (1090, 97028), (1270, 83276), (1528, 69215), (1910, 55372), (2180, 48514), (2540, 41638), (3820, 27686), (4360, 24257), (5080, 20819), (7640, 13843)]