130428578

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 238987584

約数和(自身を除く): 108559006

約数列:

[1, 2, 7, 14, 19, 38, 131, 133, 197, 262, 266, 361, 394, 722, 917, 1379, 1834, 2489, 2527, 2758, 3743, 4978, 5054, 7486, 17423, 25807, 26201, 34846, 47291, 51614, 52402, 71117, 94582, 142234, 180649, 331037, 361298, 490333, 497819, 662074, 980666, 995638, 3432331, 6864662, 9316327, 18632654, 65214289, 130428578]

約数ペア:

[(1, 130428578), (2, 65214289), (7, 18632654), (14, 9316327), (19, 6864662), (38, 3432331), (131, 995638), (133, 980666), (197, 662074), (262, 497819), (266, 490333), (361, 361298), (394, 331037), (722, 180649), (917, 142234), (1379, 94582), (1834, 71117), (2489, 52402), (2527, 51614), (2758, 47291), (3743, 34846), (4978, 26201), (5054, 25807), (7486, 17423)]