20239037875

素因数分解:

$5^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1\times {\mathrm{613}}^1$

素因数の和:1121

約数の個数: 64

約数和(自身を含む): 29286915840

約数和(自身を除く): 9047877965

約数列:

[1, 5, 7, 25, 35, 97, 125, 175, 389, 485, 613, 679, 875, 1945, 2425, 2723, 3065, 3395, 4291, 9725, 12125, 13615, 15325, 16975, 21455, 37733, 48625, 59461, 68075, 76625, 84875, 107275, 188665, 238457, 264131, 297305, 340375, 416227, 536375, 943325, 1192285, 1320655, 1486525, 1669199, 2081135, 4716625, 5961425, 6603275, 7432625, 8345995, 10405675, 23130329, 29807125, 33016375, 41729975, 52028375, 115651645, 161912303, 208649875, 578258225, 809561515, 2891291125, 4047807575, 20239037875]

約数ペア:

[(1, 20239037875), (5, 4047807575), (7, 2891291125), (25, 809561515), (35, 578258225), (97, 208649875), (125, 161912303), (175, 115651645), (389, 52028375), (485, 41729975), (613, 33016375), (679, 29807125), (875, 23130329), (1945, 10405675), (2425, 8345995), (2723, 7432625), (3065, 6603275), (3395, 5961425), (4291, 4716625), (9725, 2081135), (12125, 1669199), (13615, 1486525), (15325, 1320655), (16975, 1192285), (21455, 943325), (37733, 536375), (48625, 416227), (59461, 340375), (68075, 297305), (76625, 264131), (84875, 238457), (107275, 188665)]