187989425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 265316352

約数和(自身を除く): 77326927

約数列:

[1, 5, 13, 25, 31, 47, 65, 155, 235, 325, 397, 403, 611, 775, 1175, 1457, 1985, 2015, 3055, 5161, 7285, 9925, 10075, 12307, 15275, 18659, 18941, 25805, 36425, 61535, 93295, 94705, 129025, 159991, 242567, 307675, 466475, 473525, 578429, 799955, 1212835, 2892145, 3999775, 6064175, 7519577, 14460725, 37597885, 187989425]

約数ペア:

[(1, 187989425), (5, 37597885), (13, 14460725), (25, 7519577), (31, 6064175), (47, 3999775), (65, 2892145), (155, 1212835), (235, 799955), (325, 578429), (397, 473525), (403, 466475), (611, 307675), (775, 242567), (1175, 159991), (1457, 129025), (1985, 94705), (2015, 93295), (3055, 61535), (5161, 36425), (7285, 25805), (9925, 18941), (10075, 18659), (12307, 15275)]