81687200

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{503}}^1$

素因数の和:559

約数の個数: 144

約数和(自身を含む): 236234880

約数和(自身を除く): 154547680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 29, 32, 35, 40, 50, 56, 58, 70, 80, 100, 112, 116, 140, 145, 160, 175, 200, 203, 224, 232, 280, 290, 350, 400, 406, 464, 503, 560, 580, 700, 725, 800, 812, 928, 1006, 1015, 1120, 1160, 1400, 1450, 1624, 2012, 2030, 2320, 2515, 2800, 2900, 3248, 3521, 4024, 4060, 4640, 5030, 5075, 5600, 5800, 6496, 7042, 8048, 8120, 10060, 10150, 11600, 12575, 14084, 14587, 16096, 16240, 17605, 20120, 20300, 23200, 25150, 28168, 29174, 32480, 35210, 40240, 40600, 50300, 56336, 58348, 70420, 72935, 80480, 81200, 88025, 100600, 102109, 112672, 116696, 140840, 145870, 162400, 176050, 201200, 204218, 233392, 281680, 291740, 352100, 364675, 402400, 408436, 466784, 510545, 563360, 583480, 704200, 729350, 816872, 1021090, 1166960, 1408400, 1458700, 1633744, 2042180, 2333920, 2552725, 2816800, 2917400, 3267488, 4084360, 5105450, 5834800, 8168720, 10210900, 11669600, 16337440, 20421800, 40843600, 81687200]

約数ペア:

[(1, 81687200), (2, 40843600), (4, 20421800), (5, 16337440), (7, 11669600), (8, 10210900), (10, 8168720), (14, 5834800), (16, 5105450), (20, 4084360), (25, 3267488), (28, 2917400), (29, 2816800), (32, 2552725), (35, 2333920), (40, 2042180), (50, 1633744), (56, 1458700), (58, 1408400), (70, 1166960), (80, 1021090), (100, 816872), (112, 729350), (116, 704200), (140, 583480), (145, 563360), (160, 510545), (175, 466784), (200, 408436), (203, 402400), (224, 364675), (232, 352100), (280, 291740), (290, 281680), (350, 233392), (400, 204218), (406, 201200), (464, 176050), (503, 162400), (560, 145870), (580, 140840), (700, 116696), (725, 112672), (800, 102109), (812, 100600), (928, 88025), (1006, 81200), (1015, 80480), (1120, 72935), (1160, 70420), (1400, 58348), (1450, 56336), (1624, 50300), (2012, 40600), (2030, 40240), (2320, 35210), (2515, 32480), (2800, 29174), (2900, 28168), (3248, 25150), (3521, 23200), (4024, 20300), (4060, 20120), (4640, 17605), (5030, 16240), (5075, 16096), (5600, 14587), (5800, 14084), (6496, 12575), (7042, 11600), (8048, 10150), (8120, 10060)]