64391475

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{619}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 113782400

約数和(自身を除く): 49390925

約数列:

[1, 3, 5, 15, 19, 25, 57, 73, 75, 95, 219, 285, 365, 475, 619, 1095, 1387, 1425, 1825, 1857, 3095, 4161, 5475, 6935, 9285, 11761, 15475, 20805, 34675, 35283, 45187, 46425, 58805, 104025, 135561, 176415, 225935, 294025, 677805, 858553, 882075, 1129675, 2575659, 3389025, 4292765, 12878295, 21463825, 64391475]

約数ペア:

[(1, 64391475), (3, 21463825), (5, 12878295), (15, 4292765), (19, 3389025), (25, 2575659), (57, 1129675), (73, 882075), (75, 858553), (95, 677805), (219, 294025), (285, 225935), (365, 176415), (475, 135561), (619, 104025), (1095, 58805), (1387, 46425), (1425, 45187), (1825, 35283), (1857, 34675), (3095, 20805), (4161, 15475), (5475, 11761), (6935, 9285)]