172980400

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:263

約数の個数: 120

約数和(自身を含む): 433833840

約数和(自身を除く): 260853440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 89, 100, 113, 172, 178, 200, 215, 226, 344, 356, 400, 430, 445, 452, 565, 688, 712, 860, 890, 904, 1075, 1130, 1424, 1720, 1780, 1808, 2150, 2225, 2260, 2825, 3440, 3560, 3827, 4300, 4450, 4520, 4859, 5650, 7120, 7654, 8600, 8900, 9040, 9718, 10057, 11300, 15308, 17200, 17800, 19135, 19436, 20114, 22600, 24295, 30616, 35600, 38270, 38872, 40228, 45200, 48590, 50285, 61232, 76540, 77744, 80456, 95675, 97180, 100570, 121475, 153080, 160912, 191350, 194360, 201140, 242950, 251425, 306160, 382700, 388720, 402280, 432451, 485900, 502850, 765400, 804560, 864902, 971800, 1005700, 1530800, 1729804, 1943600, 2011400, 2162255, 3459608, 4022800, 4324510, 6919216, 8649020, 10811275, 17298040, 21622550, 34596080, 43245100, 86490200, 172980400]

約数ペア:

[(1, 172980400), (2, 86490200), (4, 43245100), (5, 34596080), (8, 21622550), (10, 17298040), (16, 10811275), (20, 8649020), (25, 6919216), (40, 4324510), (43, 4022800), (50, 3459608), (80, 2162255), (86, 2011400), (89, 1943600), (100, 1729804), (113, 1530800), (172, 1005700), (178, 971800), (200, 864902), (215, 804560), (226, 765400), (344, 502850), (356, 485900), (400, 432451), (430, 402280), (445, 388720), (452, 382700), (565, 306160), (688, 251425), (712, 242950), (860, 201140), (890, 194360), (904, 191350), (1075, 160912), (1130, 153080), (1424, 121475), (1720, 100570), (1780, 97180), (1808, 95675), (2150, 80456), (2225, 77744), (2260, 76540), (2825, 61232), (3440, 50285), (3560, 48590), (3827, 45200), (4300, 40228), (4450, 38872), (4520, 38270), (4859, 35600), (5650, 30616), (7120, 24295), (7654, 22600), (8600, 20114), (8900, 19436), (9040, 19135), (9718, 17800), (10057, 17200), (11300, 15308)]