19031025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 34372800

約数和(自身を除く): 15341775

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 131, 149, 195, 325, 393, 447, 655, 745, 975, 1703, 1937, 1965, 2235, 3275, 3725, 5109, 5811, 8515, 9685, 9825, 11175, 19519, 25545, 29055, 42575, 48425, 58557, 97595, 127725, 145275, 253747, 292785, 487975, 761241, 1268735, 1463925, 3806205, 6343675, 19031025]

約数ペア:

[(1, 19031025), (3, 6343675), (5, 3806205), (13, 1463925), (15, 1268735), (25, 761241), (39, 487975), (65, 292785), (75, 253747), (131, 145275), (149, 127725), (195, 97595), (325, 58557), (393, 48425), (447, 42575), (655, 29055), (745, 25545), (975, 19519), (1703, 11175), (1937, 9825), (1965, 9685), (2235, 8515), (3275, 5811), (3725, 5109)]