29778820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 64568448

約数和(自身を除く): 34789628

約数列:

[1, 2, 4, 5, 10, 20, 67, 71, 134, 142, 268, 284, 313, 335, 355, 626, 670, 710, 1252, 1340, 1420, 1565, 3130, 4757, 6260, 9514, 19028, 20971, 22223, 23785, 41942, 44446, 47570, 83884, 88892, 95140, 104855, 111115, 209710, 222230, 419420, 444460, 1488941, 2977882, 5955764, 7444705, 14889410, 29778820]

約数ペア:

[(1, 29778820), (2, 14889410), (4, 7444705), (5, 5955764), (10, 2977882), (20, 1488941), (67, 444460), (71, 419420), (134, 222230), (142, 209710), (268, 111115), (284, 104855), (313, 95140), (335, 88892), (355, 83884), (626, 47570), (670, 44446), (710, 41942), (1252, 23785), (1340, 22223), (1420, 20971), (1565, 19028), (3130, 9514), (4757, 6260)]