208317405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 364849920

約数和(自身を除く): 156532515

約数列:

[1, 3, 5, 15, 17, 51, 67, 85, 89, 137, 201, 255, 267, 335, 411, 445, 685, 1005, 1139, 1335, 1513, 2055, 2329, 3417, 4539, 5695, 5963, 6987, 7565, 9179, 11645, 12193, 17085, 17889, 22695, 27537, 29815, 34935, 36579, 45895, 60965, 89445, 101371, 137685, 156043, 182895, 207281, 304113, 468129, 506855, 621843, 780215, 816931, 1036405, 1520565, 2340645, 2450793, 3109215, 4084655, 12253965, 13887827, 41663481, 69439135, 208317405]

約数ペア:

[(1, 208317405), (3, 69439135), (5, 41663481), (15, 13887827), (17, 12253965), (51, 4084655), (67, 3109215), (85, 2450793), (89, 2340645), (137, 1520565), (201, 1036405), (255, 816931), (267, 780215), (335, 621843), (411, 506855), (445, 468129), (685, 304113), (1005, 207281), (1139, 182895), (1335, 156043), (1513, 137685), (2055, 101371), (2329, 89445), (3417, 60965), (4539, 45895), (5695, 36579), (5963, 34935), (6987, 29815), (7565, 27537), (9179, 22695), (11645, 17889), (12193, 17085)]