81191750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{17093}}^1$

素因数の和:17129

約数の個数: 32

約数和(自身を含む): 159999840

約数和(自身を除く): 78808090

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 950, 2375, 4750, 17093, 34186, 85465, 170930, 324767, 427325, 649534, 854650, 1623835, 2136625, 3247670, 4273250, 8119175, 16238350, 40595875, 81191750]

約数ペア:

[(1, 81191750), (2, 40595875), (5, 16238350), (10, 8119175), (19, 4273250), (25, 3247670), (38, 2136625), (50, 1623835), (95, 854650), (125, 649534), (190, 427325), (250, 324767), (475, 170930), (950, 85465), (2375, 34186), (4750, 17093)]