154807760

素因数分解:

$2^4\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2357}}^1$

素因数の和:3191

約数の個数: 40

約数和(自身を含む): 360519336

約数和(自身を除く): 205711576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 1642, 2357, 3284, 4105, 4714, 6568, 8210, 9428, 11785, 13136, 16420, 18856, 23570, 32840, 37712, 47140, 65680, 94280, 188560, 1935097, 3870194, 7740388, 9675485, 15480776, 19350970, 30961552, 38701940, 77403880, 154807760]

約数ペア:

[(1, 154807760), (2, 77403880), (4, 38701940), (5, 30961552), (8, 19350970), (10, 15480776), (16, 9675485), (20, 7740388), (40, 3870194), (80, 1935097), (821, 188560), (1642, 94280), (2357, 65680), (3284, 47140), (4105, 37712), (4714, 32840), (6568, 23570), (8210, 18856), (9428, 16420), (11785, 13136)]