15886660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{431}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 35562240

約数和(自身を除く): 19675580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 431, 485, 862, 970, 1724, 1843, 1940, 2155, 3686, 4310, 7372, 8189, 8620, 9215, 16378, 18430, 32756, 36860, 40945, 41807, 81890, 83614, 163780, 167228, 209035, 418070, 794333, 836140, 1588666, 3177332, 3971665, 7943330, 15886660]

約数ペア:

[(1, 15886660), (2, 7943330), (4, 3971665), (5, 3177332), (10, 1588666), (19, 836140), (20, 794333), (38, 418070), (76, 209035), (95, 167228), (97, 163780), (190, 83614), (194, 81890), (380, 41807), (388, 40945), (431, 36860), (485, 32756), (862, 18430), (970, 16378), (1724, 9215), (1843, 8620), (1940, 8189), (2155, 7372), (3686, 4310)]