201520125

素因数分解:

$3^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:336

約数の個数: 96

約数和(自身を含む): 395557344

約数和(自身を除く): 194037219

約数列:

[1, 3, 5, 9, 15, 17, 25, 41, 45, 51, 75, 85, 123, 125, 153, 205, 225, 255, 257, 369, 375, 425, 615, 697, 765, 771, 1025, 1125, 1275, 1285, 1845, 2091, 2125, 2313, 3075, 3485, 3825, 3855, 4369, 5125, 6273, 6375, 6425, 9225, 10455, 10537, 11565, 13107, 15375, 17425, 19125, 19275, 21845, 31365, 31611, 32125, 39321, 46125, 52275, 52685, 57825, 65535, 87125, 94833, 96375, 109225, 156825, 158055, 179129, 196605, 261375, 263425, 289125, 327675, 474165, 537387, 546125, 784125, 790275, 895645, 983025, 1317125, 1612161, 1638375, 2370825, 2686935, 3951375, 4478225, 4915125, 8060805, 11854125, 13434675, 22391125, 40304025, 67173375, 201520125]

約数ペア:

[(1, 201520125), (3, 67173375), (5, 40304025), (9, 22391125), (15, 13434675), (17, 11854125), (25, 8060805), (41, 4915125), (45, 4478225), (51, 3951375), (75, 2686935), (85, 2370825), (123, 1638375), (125, 1612161), (153, 1317125), (205, 983025), (225, 895645), (255, 790275), (257, 784125), (369, 546125), (375, 537387), (425, 474165), (615, 327675), (697, 289125), (765, 263425), (771, 261375), (1025, 196605), (1125, 179129), (1275, 158055), (1285, 156825), (1845, 109225), (2091, 96375), (2125, 94833), (2313, 87125), (3075, 65535), (3485, 57825), (3825, 52685), (3855, 52275), (4369, 46125), (5125, 39321), (6273, 32125), (6375, 31611), (6425, 31365), (9225, 21845), (10455, 19275), (10537, 19125), (11565, 17425), (13107, 15375)]