20188693760

素因数分解:

$2^8\times 5^1\times {\mathrm{419}}^1\times {\mathrm{37643}}^1$

素因数の和:38083

約数の個数: 72

約数和(自身を含む): 48474931680

約数和(自身を除く): 28286237920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 419, 640, 838, 1280, 1676, 2095, 3352, 4190, 6704, 8380, 13408, 16760, 26816, 33520, 37643, 53632, 67040, 75286, 107264, 134080, 150572, 188215, 268160, 301144, 376430, 536320, 602288, 752860, 1204576, 1505720, 2409152, 3011440, 4818304, 6022880, 9636608, 12045760, 15772417, 24091520, 31544834, 48183040, 63089668, 78862085, 126179336, 157724170, 252358672, 315448340, 504717344, 630896680, 1009434688, 1261793360, 2018869376, 2523586720, 4037738752, 5047173440, 10094346880, 20188693760]

約数ペア:

[(1, 20188693760), (2, 10094346880), (4, 5047173440), (5, 4037738752), (8, 2523586720), (10, 2018869376), (16, 1261793360), (20, 1009434688), (32, 630896680), (40, 504717344), (64, 315448340), (80, 252358672), (128, 157724170), (160, 126179336), (256, 78862085), (320, 63089668), (419, 48183040), (640, 31544834), (838, 24091520), (1280, 15772417), (1676, 12045760), (2095, 9636608), (3352, 6022880), (4190, 4818304), (6704, 3011440), (8380, 2409152), (13408, 1505720), (16760, 1204576), (26816, 752860), (33520, 602288), (37643, 536320), (53632, 376430), (67040, 301144), (75286, 268160), (107264, 188215), (134080, 150572)]