80712800

素因数分解:

$2^5\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 216

約数和(自身を含む): 240453360

約数和(自身を除く): 159740560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 29, 32, 35, 40, 49, 50, 56, 58, 70, 71, 80, 98, 100, 112, 116, 140, 142, 145, 160, 175, 196, 200, 203, 224, 232, 245, 280, 284, 290, 350, 355, 392, 400, 406, 464, 490, 497, 560, 568, 580, 700, 710, 725, 784, 800, 812, 928, 980, 994, 1015, 1120, 1136, 1160, 1225, 1400, 1420, 1421, 1450, 1568, 1624, 1775, 1960, 1988, 2030, 2059, 2272, 2320, 2450, 2485, 2800, 2840, 2842, 2900, 3248, 3479, 3550, 3920, 3976, 4060, 4118, 4640, 4900, 4970, 5075, 5600, 5680, 5684, 5800, 6496, 6958, 7100, 7105, 7840, 7952, 8120, 8236, 9800, 9940, 10150, 10295, 11360, 11368, 11600, 12425, 13916, 14200, 14210, 14413, 15904, 16240, 16472, 17395, 19600, 19880, 20300, 20590, 22736, 23200, 24850, 27832, 28400, 28420, 28826, 32480, 32944, 34790, 35525, 39200, 39760, 40600, 41180, 45472, 49700, 51475, 55664, 56800, 56840, 57652, 65888, 69580, 71050, 72065, 79520, 81200, 82360, 86975, 99400, 100891, 102950, 111328, 113680, 115304, 139160, 142100, 144130, 162400, 164720, 173950, 198800, 201782, 205900, 227360, 230608, 278320, 284200, 288260, 329440, 347900, 360325, 397600, 403564, 411800, 461216, 504455, 556640, 568400, 576520, 695800, 720650, 807128, 823600, 1008910, 1136800, 1153040, 1391600, 1441300, 1614256, 1647200, 2017820, 2306080, 2522275, 2783200, 2882600, 3228512, 4035640, 5044550, 5765200, 8071280, 10089100, 11530400, 16142560, 20178200, 40356400, 80712800]

約数ペア:

[(1, 80712800), (2, 40356400), (4, 20178200), (5, 16142560), (7, 11530400), (8, 10089100), (10, 8071280), (14, 5765200), (16, 5044550), (20, 4035640), (25, 3228512), (28, 2882600), (29, 2783200), (32, 2522275), (35, 2306080), (40, 2017820), (49, 1647200), (50, 1614256), (56, 1441300), (58, 1391600), (70, 1153040), (71, 1136800), (80, 1008910), (98, 823600), (100, 807128), (112, 720650), (116, 695800), (140, 576520), (142, 568400), (145, 556640), (160, 504455), (175, 461216), (196, 411800), (200, 403564), (203, 397600), (224, 360325), (232, 347900), (245, 329440), (280, 288260), (284, 284200), (290, 278320), (350, 230608), (355, 227360), (392, 205900), (400, 201782), (406, 198800), (464, 173950), (490, 164720), (497, 162400), (560, 144130), (568, 142100), (580, 139160), (700, 115304), (710, 113680), (725, 111328), (784, 102950), (800, 100891), (812, 99400), (928, 86975), (980, 82360), (994, 81200), (1015, 79520), (1120, 72065), (1136, 71050), (1160, 69580), (1225, 65888), (1400, 57652), (1420, 56840), (1421, 56800), (1450, 55664), (1568, 51475), (1624, 49700), (1775, 45472), (1960, 41180), (1988, 40600), (2030, 39760), (2059, 39200), (2272, 35525), (2320, 34790), (2450, 32944), (2485, 32480), (2800, 28826), (2840, 28420), (2842, 28400), (2900, 27832), (3248, 24850), (3479, 23200), (3550, 22736), (3920, 20590), (3976, 20300), (4060, 19880), (4118, 19600), (4640, 17395), (4900, 16472), (4970, 16240), (5075, 15904), (5600, 14413), (5680, 14210), (5684, 14200), (5800, 13916), (6496, 12425), (6958, 11600), (7100, 11368), (7105, 11360), (7840, 10295), (7952, 10150), (8120, 9940), (8236, 9800)]