161380940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{39749}}^1$

素因数の和:39794

約数の個数: 48

約数和(自身を含む): 400680000

約数和(自身を除く): 239299060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 39749, 79498, 158996, 198745, 278243, 397490, 556486, 794980, 1112972, 1152721, 1391215, 2305442, 2782430, 4610884, 5564860, 5763605, 8069047, 11527210, 16138094, 23054420, 32276188, 40345235, 80690470, 161380940]

約数ペア:

[(1, 161380940), (2, 80690470), (4, 40345235), (5, 32276188), (7, 23054420), (10, 16138094), (14, 11527210), (20, 8069047), (28, 5763605), (29, 5564860), (35, 4610884), (58, 2782430), (70, 2305442), (116, 1391215), (140, 1152721), (145, 1112972), (203, 794980), (290, 556486), (406, 397490), (580, 278243), (812, 198745), (1015, 158996), (2030, 79498), (4060, 39749)]