20213088400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1487}}^1\times {\mathrm{1999}}^1$

素因数の和:3521

約数の個数: 120

約数和(自身を含む): 51478848000

約数和(自身を除く): 31265759600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1487, 1700, 1999, 2974, 3400, 3998, 5948, 6800, 7435, 7996, 9995, 11896, 14870, 15992, 19990, 23792, 25279, 29740, 31984, 33983, 37175, 39980, 49975, 50558, 59480, 67966, 74350, 79960, 99950, 101116, 118960, 126395, 135932, 148700, 159920, 169915, 199900, 202232, 252790, 271864, 297400, 339830, 399800, 404464, 505580, 543728, 594800, 631975, 679660, 799600, 849575, 1011160, 1263950, 1359320, 1699150, 2022320, 2527900, 2718640, 2972513, 3398300, 5055800, 5945026, 6796600, 10111600, 11890052, 13593200, 14862565, 23780104, 29725130, 47560208, 50532721, 59450260, 74312825, 101065442, 118900520, 148625650, 202130884, 237801040, 252663605, 297251300, 404261768, 505327210, 594502600, 808523536, 1010654420, 1189005200, 1263318025, 2021308840, 2526636050, 4042617680, 5053272100, 10106544200, 20213088400]

約数ペア:

[(1, 20213088400), (2, 10106544200), (4, 5053272100), (5, 4042617680), (8, 2526636050), (10, 2021308840), (16, 1263318025), (17, 1189005200), (20, 1010654420), (25, 808523536), (34, 594502600), (40, 505327210), (50, 404261768), (68, 297251300), (80, 252663605), (85, 237801040), (100, 202130884), (136, 148625650), (170, 118900520), (200, 101065442), (272, 74312825), (340, 59450260), (400, 50532721), (425, 47560208), (680, 29725130), (850, 23780104), (1360, 14862565), (1487, 13593200), (1700, 11890052), (1999, 10111600), (2974, 6796600), (3400, 5945026), (3998, 5055800), (5948, 3398300), (6800, 2972513), (7435, 2718640), (7996, 2527900), (9995, 2022320), (11896, 1699150), (14870, 1359320), (15992, 1263950), (19990, 1011160), (23792, 849575), (25279, 799600), (29740, 679660), (31984, 631975), (33983, 594800), (37175, 543728), (39980, 505580), (49975, 404464), (50558, 399800), (59480, 339830), (67966, 297400), (74350, 271864), (79960, 252790), (99950, 202232), (101116, 199900), (118960, 169915), (126395, 159920), (135932, 148700)]