198857680

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{7247}}^1$

素因数の和:7281

約数の個数: 80

約数和(自身を含む): 539251200

約数和(自身を除く): 340393520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3430, 3920, 5488, 6860, 7247, 13720, 14494, 27440, 28988, 36235, 50729, 57976, 72470, 101458, 115952, 144940, 202916, 253645, 289880, 355103, 405832, 507290, 579760, 710206, 811664, 1014580, 1420412, 1775515, 2029160, 2485721, 2840824, 3551030, 4058320, 4971442, 5681648, 7102060, 9942884, 12428605, 14204120, 19885768, 24857210, 28408240, 39771536, 49714420, 99428840, 198857680]

約数ペア:

[(1, 198857680), (2, 99428840), (4, 49714420), (5, 39771536), (7, 28408240), (8, 24857210), (10, 19885768), (14, 14204120), (16, 12428605), (20, 9942884), (28, 7102060), (35, 5681648), (40, 4971442), (49, 4058320), (56, 3551030), (70, 2840824), (80, 2485721), (98, 2029160), (112, 1775515), (140, 1420412), (196, 1014580), (245, 811664), (280, 710206), (343, 579760), (392, 507290), (490, 405832), (560, 355103), (686, 289880), (784, 253645), (980, 202916), (1372, 144940), (1715, 115952), (1960, 101458), (2744, 72470), (3430, 57976), (3920, 50729), (5488, 36235), (6860, 28988), (7247, 27440), (13720, 14494)]