663724100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{1163}}^1$

素因数の和:1629

約数の個数: 72

約数和(自身を含む): 1555942080

約数和(自身を除く): 892217980

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 439, 650, 878, 1163, 1300, 1756, 2195, 2326, 4390, 4652, 5707, 5815, 8780, 10975, 11414, 11630, 15119, 21950, 22828, 23260, 28535, 29075, 30238, 43900, 57070, 58150, 60476, 75595, 114140, 116300, 142675, 151190, 285350, 302380, 377975, 510557, 570700, 755950, 1021114, 1511900, 2042228, 2552785, 5105570, 6637241, 10211140, 12763925, 13274482, 25527850, 26548964, 33186205, 51055700, 66372410, 132744820, 165931025, 331862050, 663724100]

約数ペア:

[(1, 663724100), (2, 331862050), (4, 165931025), (5, 132744820), (10, 66372410), (13, 51055700), (20, 33186205), (25, 26548964), (26, 25527850), (50, 13274482), (52, 12763925), (65, 10211140), (100, 6637241), (130, 5105570), (260, 2552785), (325, 2042228), (439, 1511900), (650, 1021114), (878, 755950), (1163, 570700), (1300, 510557), (1756, 377975), (2195, 302380), (2326, 285350), (4390, 151190), (4652, 142675), (5707, 116300), (5815, 114140), (8780, 75595), (10975, 60476), (11414, 58150), (11630, 57070), (15119, 43900), (21950, 30238), (22828, 29075), (23260, 28535)]