389978848

素因数分解:

$2^5\times 7^2\times {\mathrm{73}}^1\times {\mathrm{3407}}^1$

素因数の和:3504

約数の個数: 72

約数和(自身を含む): 905621472

約数和(自身を除く): 515642624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 73, 98, 112, 146, 196, 224, 292, 392, 511, 584, 784, 1022, 1168, 1568, 2044, 2336, 3407, 3577, 4088, 6814, 7154, 8176, 13628, 14308, 16352, 23849, 27256, 28616, 47698, 54512, 57232, 95396, 109024, 114464, 166943, 190792, 248711, 333886, 381584, 497422, 667772, 763168, 994844, 1335544, 1740977, 1989688, 2671088, 3481954, 3979376, 5342176, 6963908, 7958752, 12186839, 13927816, 24373678, 27855632, 48747356, 55711264, 97494712, 194989424, 389978848]

約数ペア:

[(1, 389978848), (2, 194989424), (4, 97494712), (7, 55711264), (8, 48747356), (14, 27855632), (16, 24373678), (28, 13927816), (32, 12186839), (49, 7958752), (56, 6963908), (73, 5342176), (98, 3979376), (112, 3481954), (146, 2671088), (196, 1989688), (224, 1740977), (292, 1335544), (392, 994844), (511, 763168), (584, 667772), (784, 497422), (1022, 381584), (1168, 333886), (1568, 248711), (2044, 190792), (2336, 166943), (3407, 114464), (3577, 109024), (4088, 95396), (6814, 57232), (7154, 54512), (8176, 47698), (13628, 28616), (14308, 27256), (16352, 23849)]