51411280

素因数分解:

$2^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{2389}}^1$

素因数の和:2671

約数の個数: 40

約数和(自身を含む): 120025800

約数和(自身を除く): 68614520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269, 538, 1076, 1345, 2152, 2389, 2690, 4304, 4778, 5380, 9556, 10760, 11945, 19112, 21520, 23890, 38224, 47780, 95560, 191120, 642641, 1285282, 2570564, 3213205, 5141128, 6426410, 10282256, 12852820, 25705640, 51411280]

約数ペア:

[(1, 51411280), (2, 25705640), (4, 12852820), (5, 10282256), (8, 6426410), (10, 5141128), (16, 3213205), (20, 2570564), (40, 1285282), (80, 642641), (269, 191120), (538, 95560), (1076, 47780), (1345, 38224), (2152, 23890), (2389, 21520), (2690, 19112), (4304, 11945), (4778, 10760), (5380, 9556)]