156729520

素因数分解:

$2^4\times 5^1\times {\mathrm{983}}^1\times {\mathrm{1993}}^1$

素因数の和:2989

約数の個数: 40

約数和(自身を含む): 364949856

約数和(自身を除く): 208220336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 983, 1966, 1993, 3932, 3986, 4915, 7864, 7972, 9830, 9965, 15728, 15944, 19660, 19930, 31888, 39320, 39860, 78640, 79720, 159440, 1959119, 3918238, 7836476, 9795595, 15672952, 19591190, 31345904, 39182380, 78364760, 156729520]

約数ペア:

[(1, 156729520), (2, 78364760), (4, 39182380), (5, 31345904), (8, 19591190), (10, 15672952), (16, 9795595), (20, 7836476), (40, 3918238), (80, 1959119), (983, 159440), (1966, 79720), (1993, 78640), (3932, 39860), (3986, 39320), (4915, 31888), (7864, 19930), (7972, 19660), (9830, 15944), (9965, 15728)]