208510575

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:393

約数の個数: 96

約数和(自身を含む): 429305856

約数和(自身を除く): 220795281

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 137, 175, 195, 223, 273, 325, 411, 455, 525, 669, 685, 959, 975, 1115, 1365, 1561, 1781, 2055, 2275, 2877, 2899, 3345, 3425, 4683, 4795, 5343, 5575, 6825, 7805, 8697, 8905, 10275, 12467, 14385, 14495, 16725, 20293, 23415, 23975, 26715, 30551, 37401, 39025, 43485, 44525, 60879, 62335, 71925, 72475, 91653, 101465, 117075, 133575, 152755, 187005, 213857, 217425, 304395, 311675, 397163, 458265, 507325, 641571, 763775, 935025, 1069285, 1191489, 1521975, 1985815, 2291325, 2780141, 3207855, 5346425, 5957445, 8340423, 9929075, 13900705, 16039275, 29787225, 41702115, 69503525, 208510575]

約数ペア:

[(1, 208510575), (3, 69503525), (5, 41702115), (7, 29787225), (13, 16039275), (15, 13900705), (21, 9929075), (25, 8340423), (35, 5957445), (39, 5346425), (65, 3207855), (75, 2780141), (91, 2291325), (105, 1985815), (137, 1521975), (175, 1191489), (195, 1069285), (223, 935025), (273, 763775), (325, 641571), (411, 507325), (455, 458265), (525, 397163), (669, 311675), (685, 304395), (959, 217425), (975, 213857), (1115, 187005), (1365, 152755), (1561, 133575), (1781, 117075), (2055, 101465), (2275, 91653), (2877, 72475), (2899, 71925), (3345, 62335), (3425, 60879), (4683, 44525), (4795, 43485), (5343, 39025), (5575, 37401), (6825, 30551), (7805, 26715), (8697, 23975), (8905, 23415), (10275, 20293), (12467, 16725), (14385, 14495)]