254810320

素因数分解:

$2^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{4969}}^1$

素因数の和:5623

約数の個数: 40

約数和(自身を含む): 593477640

約数和(自身を除く): 338667320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641, 1282, 2564, 3205, 4969, 5128, 6410, 9938, 10256, 12820, 19876, 24845, 25640, 39752, 49690, 51280, 79504, 99380, 198760, 397520, 3185129, 6370258, 12740516, 15925645, 25481032, 31851290, 50962064, 63702580, 127405160, 254810320]

約数ペア:

[(1, 254810320), (2, 127405160), (4, 63702580), (5, 50962064), (8, 31851290), (10, 25481032), (16, 15925645), (20, 12740516), (40, 6370258), (80, 3185129), (641, 397520), (1282, 198760), (2564, 99380), (3205, 79504), (4969, 51280), (5128, 49690), (6410, 39752), (9938, 25640), (10256, 24845), (12820, 19876)]