217352240

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{89}}^2$

素因数の和:212

約数の個数: 120

約数和(自身を含む): 596018400

約数和(自身を除く): 378666160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 89, 98, 112, 140, 178, 196, 245, 280, 343, 356, 392, 445, 490, 560, 623, 686, 712, 784, 890, 980, 1246, 1372, 1424, 1715, 1780, 1960, 2492, 2744, 3115, 3430, 3560, 3920, 4361, 4984, 5488, 6230, 6860, 7120, 7921, 8722, 9968, 12460, 13720, 15842, 17444, 21805, 24920, 27440, 30527, 31684, 34888, 39605, 43610, 49840, 55447, 61054, 63368, 69776, 79210, 87220, 110894, 122108, 126736, 152635, 158420, 174440, 221788, 244216, 277235, 305270, 316840, 348880, 388129, 443576, 488432, 554470, 610540, 633680, 776258, 887152, 1108940, 1221080, 1552516, 1940645, 2217880, 2442160, 2716903, 3105032, 3881290, 4435760, 5433806, 6210064, 7762580, 10867612, 13584515, 15525160, 21735224, 27169030, 31050320, 43470448, 54338060, 108676120, 217352240]

約数ペア:

[(1, 217352240), (2, 108676120), (4, 54338060), (5, 43470448), (7, 31050320), (8, 27169030), (10, 21735224), (14, 15525160), (16, 13584515), (20, 10867612), (28, 7762580), (35, 6210064), (40, 5433806), (49, 4435760), (56, 3881290), (70, 3105032), (80, 2716903), (89, 2442160), (98, 2217880), (112, 1940645), (140, 1552516), (178, 1221080), (196, 1108940), (245, 887152), (280, 776258), (343, 633680), (356, 610540), (392, 554470), (445, 488432), (490, 443576), (560, 388129), (623, 348880), (686, 316840), (712, 305270), (784, 277235), (890, 244216), (980, 221788), (1246, 174440), (1372, 158420), (1424, 152635), (1715, 126736), (1780, 122108), (1960, 110894), (2492, 87220), (2744, 79210), (3115, 69776), (3430, 63368), (3560, 61054), (3920, 55447), (4361, 49840), (4984, 43610), (5488, 39605), (6230, 34888), (6860, 31684), (7120, 30527), (7921, 27440), (8722, 24920), (9968, 21805), (12460, 17444), (13720, 15842)]